Links : Use the side menu to navigate through our site. They have very a proprietary design that is unique to ALL of our pistons. This is a great modification and can be done by any competent machine shop. The RK Tek Line of Customs Pistons are VERY Unique... ALL pistons are designed from a blank sheet of paper and uses only the highest quality of components. But is useable. Christmas came early for a few of our customers! 7) Another held belief is that the new AXYS piston has addressed the OEM short-comings mentioned above. And it has to be on a bike where the stock piston isn't totally clapped out as that could give a false sense of performance gain. These pistons, as all my other CUSTOM pistons, follow this same design procedure, Installing a better designed piston that will remain in tolerance (spec) will greatly aid in helping your thinner walled (2008-2012) cylinders survive. 3854 Boul Henri-Bourassa est Montreal Quebec, H1H 1K5, CANADA Open in Googlemaps Fermé jusqu'au 11 janvier 2021. Kelsey Tek Kelsey Manning. These pistons have about 1500 miles on them. Some will also have you believe that they have installed a "special" pin offset. admincheat giveweaponset 0 100 admincheat giveweaponset 1 100 admincheat giveweaponset 2 … More clearly, the rod ratio is too small for this engine. These pistons, we offer, are FAR from ANY "off the shelf" OR "aftermarket" piston available today! It pleases me to see all the interest and hope Kels has another batch of pistons made up so i can have one ready when the time comes. Now busy week for us here at the shop building these sleds 落 stay tuned The OEM Polaris piston is 100% in spec and the proper size when new in the box! We will open again on … It suffers from skirt collapse and it is also WAY too HEAVY! However, the piston design is not much better than the 800 Piston. We, usually, end up altering MANY of the OEM piston's design aspects and "correct" the short-comings we feel are present. 1) The 600 Polaris Engine is a great engine!.. RK TEK has a new piston and Cylinder head kit that is designed to help your 800 CFi in 2 ways 1) Improve power 2) Improve reliability of the engine. KTM and Husqvarna. Based on these FACTS, I think it is safe to assume that the rod-ratio is not an issue and claiming that is nothing more than a scare tactic. In 2010 Polaris thickened up this skirt. Max Trains et Hobby. Re: RK TEK head and new concept piston 2017 300 xcw test. Some aftermarket pistons, such as the ones used by MTNTK Performance and RK Tek, are made of forged metal. They are designed with hard anodizing on the ring lands, pin boss and crown underside AND custom coating on the crown. 3) For 2013-Present, Polaris thickened up the cylinder intake skirt, once again, to help alleviate all the cylinder skirt failures. Hopefully, this article will clear up some of the mis-conceptions that surround this engine and its internal design? you can also send in your stock haed and he will cut it for his domes. Installing ANY clever named piston kit will NOT fix your thin walled cylinder skirts! One would hope that any of these other pistons would also contain this same OEM offset. Ski-Doo: ZX Sleds. The other major issue is the LACK of lower  piston support at BDC. 4) There is a common belief that the 2013 and newer engines have a cylinder or crankshaft offset compared to the earlier years. Yes, that's right, RK Tek draws results from "real world" testing. This thicker skirted cylinder WILL install into your 2011-2012 cases ONLY if you modify the upper case half to accept the thicker skirt. D. Danzick Free Member. Polaris Patriot 850 Dual Ring Direct Replacement Pistons. These are very clever marketing terms to impose the "idea" that by installing these kits that the engine is "fixed" and will no longer be prone to failure. We are the ONLY company that has a kit to aid in lower piston skirt support. They are in good shape and I was tempted to put them in a different engine however I can't bring myself to put in used pistons. I'm not sure as I'm a newbie. One dome has some marks in it from a piston going bad. This Price Already Includes a Refundable Core Deposit of $100. Our custom pistons HOLD their tolerances..  AGAIN.. The REAL issue is that the OEM piston does not REMAIN in spec after use. The piston kits we offer (some call a fix kit.. we do not) are the highest quality piston on the market today.. Polaris thickened up the skirt, again, for 2011-12 CFI-2 Engines. ALL my pistons are designed from a blank sheet of paper and made with custom components (No, they are not 100% Wossner). You can have a BROKEN off lower skirt and the compression reading will not change! Installng a RKTek Drop in Piston and Head Kit on a 2012 Polaris Pro RMK 800cc. Look what's in Dirt Bike magazine this month. 1245 Industrial Park Rd.Preston, IDAHO 83263PHONE: 208-852-3221Email: torqueline@2strokeheads.com. This is not a bad change but does very little to aid with the skirt collapse, extreme piston weight, and heavy ring drag. RK tek pistons? Our CUSTOM pistons (Direct replacement, Drop In, AND Big Bore) are CUSTOM designed! 5) It is also believed that there exists a Rod-Ratio issue with the Polaris 800CFI engines. I picked up a set of these on Friday. Please visit our website at www.2strokeheads.com So, it stands to reason that IF the rod-ratio of the Polaris 800 CFI engine is too small, then the rod-ratio of the Arctic Cat and Ski Doo 800 engines are also too small (especially the Ski Doo since it is even smaller). Cart empty × Cart empty ... Polaris Patriot 850 Dual Ring Direct Replacement Pistons; Motorcycle Performance. Fantastic service, and a pleasure to talk with Kelsey on the phone to place my order. Snowmobiles: Brands, Performance & Modifications. People always state "I pulled my OEM pistons and they LOOKED fine and compression reading was still in spec!". its got 1900 miles on it with around 100 psi of compression so we are going to replace the pistons. Used in there Billet cylinder head. Arrived at my house on Tuesday morning. We design the piston that should have been installed from the factory. FEED SYSTEMS MANUFACTURER AND SUPPLIER All products manufactured to PED and ASME standards FEED SYSTEMS MANUFACTURER AND SUPPLIER All products manufactured to PED and ASME standards Applications SR-TEK containers setup Applications Why SR-TEK What our brand stands for Why SR-TEK References Some of our projects References PRESSURE TANKS Stainless steel swing … Used Polaris Snowmobile 600 Pistons RK Tek Replaces 2204900 for 2014 and others - with wrist pin bearings. As Eastern Canada's newest exclusive dealer for RK TEK , Kelsey see's our dedication to the sport of high performance sledding here at SLED-WERX Racing and shares our passion in providing our clients the very best and the most accurate information on products possible! RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). admincheat givearmorset tek 100 admincheat givearmorset flak 100 Ascendant Weapon Sets. 6) ANY running of the thinner walled cylinders (2008-2012) can lead to stress and fatigue on the cylinder skirts. Please speak loud and clear when leaving a message. Polaris Patriot 850 Dual Ring Direct Replacement Pistons, Polaris Piston Myths vs. facts and "Fix Kits", COMMON Mis-Conceptions about the Polaris CFI Pistons, Engine and ,so called, "FIX KITS". We NEVER use "call waiting" to  "click" over to another call. We feel this piston to be mildly superior to the previous piston but also feel it is a lesser quality piston than what we offer. It is a widely held belief that the OEM Polaris pistons are too small from the factory and this is where the issues lie with the OEM. It has EXCESSIVE skirt taper.. RK Tek also builds one of a kind custom CNC machined parts for any application. This Block is being sold with 2 Matched RK Tek FIX PISTONS. The truth is that the Factory OEM Piston has a .020" offset to help relieve thrust pressure near Bottom Dead Center (BDC). The TRUTH of the matter is that MOST of these "Fix Kits" are nothing more than an Arctic Cat 800 Piston under a different name. Doing a compression check will not yield any relevant information regarding the health of your PISTON SKIRTS. This FUJI crank is a superior crank to the MAPE in every way. Anyone have any experience with them? Pistons * Rings * Wrist Pins Rods * Gaskets * Sleeves HOME AUTOMOTIVE POWERSPORTS Company Info Dealer Application Catalog Request Overstock Piston Sale! THESE pistons address many issues associated with the OEM design (Balance, weight, ring location to name a few).. "FIX KITS" Or other "Clever" marketed named Kits. Ski-Doo - RK Tek 827 High Elevation Domes. This stress is amplified by a looser piston and the potential for full cylinder skirt failure increases when a piston is out of tolerance . RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. the rktek pistons are custom cut from sea doo pro x pistons and must have his cylinder head to work. There are some massive gains to be had by drastically altering the piston design. Page 1 of 3 - RK TEK head.....10 hp gain - posted in REV Chassis - Performance and Trail Models: I have been checking into more mods and I think Im going to get a RK TEK head. Supposedly the PCV with the auto tuner only takes one trip to get it set up and then it is spot on because of the Auto Tuner. Therefore, the rod ratio on the Arctic Cat 800 engine is WORSE than that of the Polaris 800 engine. If you are ordering cheater heads, we will need to have your OEM heads to make the modifications. In other words,  IF your cylinder is fatigued, it will STILL be fatigued once a better piston is installed. These pistons, we offer, are FAR from ANY "off the shelf" OR "aftermarket" piston available today! Wiseco is a USA manufacturer for performance products such as forged pistons, clutch baskets, gasket kits, connecting rods, valves, crankshafts, and camshafts for motorcycles, dirtbikes, ATV, snowmobiles, PWC and automobiles. Link to his channel: http://www.youtube.com/user/vipe84 RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. This MAPE crank has a high failure rate of the lower rod bearing and the outer bearings. Yes, that's right, RK Tek draws results from "real world" testing, 1245 Industrial Park Rd.Preston, ID  83263 Phone: 208-852-3221, Copyright © 2017 RK Tek - All Rights ReservedCreated by Mountain West Web Design. Both of these kits offer SIGNIFICANT performance enhancement and extend engine life! Sorry guys... this is the reality! Yes, that's right, RK Tek draws results from "real world" testing, 1245 Industrial Park Rd.Preston, ID  83263 Phone: 208-852-3221, Copyright © 2017 RK Tek - All Rights ReservedCreated by Mountain West Web Design. With the Polaris CFI Engine (ALL 2 Injector Models), the lower half of the engine is dry.. meaning there is little to no fuel entering there. RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). The Arctic Cat 800 has the approx 130mm Rod and the same stroke. September 17, 2019. RK Tek 2 Stroke Performance. This allows your 2011-2012 engines to run with the better 2013 cylinder. If you are ordering cheater heads, we will need to have your OEM heads to make the modifications. They are 100% unique to RK TEK! This FUJI crank WILL install without any modification into any 2008-2017 engine case. The new AXYS piston is basically, the SAME piston with some added oil retention grooves on the exhaust upper skirt. 2) The 2008-2009 CFI-4 engines had a VERY thin lower cylinder skirt that was prone to cracking especially once the OEM piston gets lose in the bore. RK Tek Inc is your premier 2 Stroke Performance Shop.. ALL we do is 2 Stroke Engines! The truth is that the OEM piston's tolerances are in spec, they just don't stay there. The MTNTK fix kit addresses piston failure that is common with some Polaris engines. FUEL (NOT COOLANT) is the #1 cooling agent for ANY Engine (important to remember) and this engine has none! RK Tek SKI-DOO 800R/ETEC Drop In Piston Kit ETEC Kit is ONLY $570 PTEK Kit is $845. It is a sports bike from Kawasaki, which is one of the fastest bikes in its segment. Thread starter Danzick; Start date Dec 15, 2010; Forums. The MAPE crank was discontinued in 2013 and newer engines in favor of a new manufactured crank by FUJI. Ski-Doo. Box 1513, Woodstock, Ontario N4S 0A7 Order and Technical Assistance Phone : … Closed up to Jan 11. RK Tech. NOTE: We return every phone call if a clear message is left. We address this with our REV 2 Drop In Kit. We have spent the time and developed a Piston Kit and a Drop In Piston/Head kit for the 600 Twin.. Came off a 06 skidoo 800 rev. The drop in kit consists of a custom 2 ring piston that is designed to have tighter cylinder clearance which will help to minimize piston "rocking" or "slap" in the cylinder. If it uses a 1/4" shim under it, then this is most likely the case. Dec 11, 2008 596 50 28 Livingston MT . In other words.. your piston can LOOK perfect but MEASURE out of spec. The phone is busy all day long servicing our clients. Sold as a set of 2. Dec 15, 2010 #1 my dad has a 02 800 the NON HO version. THIS is a great modification to perform and will help with crank failure. When you are talking to us, you have our full attention and will not be cut short. The Rod-Ratio is the ratio of the rod length to the stroke of the engine. Heat is one of the primary causes of skirt collapse and skirt collapse is ONE of the primary issues with the OEM design.. Visual inspection will tell you NOTHING about the size of your piston. 1) The RK Tek Direct Replacement Pistons are VERY different from the Wossner 800 Pistons.. yes, they are made by Wossner but they are VERY different in design. If you have any questionscall us anytime we're here to help. well worth it if your looking for some more performance. Does any one have an opinion on this? When you hear that all these aftermarket kits have a tighter tolerance than the OEM.. it is simply NOT true! Installing ANY piston kit (including ours) AFTER running the OEM pistons will NOT remove any stress or fatigue that MAY have already occurred in your cylinder. Performance Motorsports Canada 948 Keyes Drive, P.0. Installation of ANY of our pistons will allow ANY Polaris CFI engine to reach a higher potential. The Ski Doo 800HO and 800R engines have a 132mm rod and 75.7mm stroke yielding a rod-ratio of 1.74. 2 were here. LOOKING fine and MEASURING fine are 2 VERY different things! Wishing you all a very Merry Christmas, from our family to yours! _____________________________________________________. Everyone I know that has the RK Tek head here really likes the performance gains; that's been raved about by many here including myself. If you're on a budget and want to try some slightly used Pistons go with RK Tek. Running our piston vs. this piston WILL show some performance enhancements. As you provide your questions below, we'll relay them to Kelsey and staff. The Polaris rod is approx 132mm in length and the stroke is 70mm yielding a rod-ratio of approx 1.88. Skirt collapse happens usually WITHOUT any scoring or visual appearances on the piston. RK Tek spent a better part of the 2008 Season developing a performance package for the new Rotax 800R(ETEC is the SAME ENGINE) Engine. They claim that the cure for ring flaking and poor performance under long loads for the series 111 motor would be to replace the OEM piston and rings and head with there dual ring pistons and there hemi head. 1) The 2008-2012 Pro 800 CFI Engines use a crank manufactured by MAPE. They have very a proprietary design that is unique to ALL of our pistons. Two actually as i have the head and test pistons on my both 2017 and 2011 bikes. We will be closed for the holiday weekend, enjoying some much needed family time. They are also lighter than the OEM Piston and that will help with the acceleration from a stop. Kawasaki Ninja ZX-14R. ALL of the 2008-2012 800 Engines were prone to lower cylinder skirt cracking! If you have any questionscall us anytime we're here to help. Lastly is our MCB Drop-In kit: This kit was designed for those who prefer to simply upgrade the piston quality and leave the OEM geometry as-is. RK TEK ECM custom re-curve add $140 CND Make payment to us here in Canada on drop in kit and ECM recurve then you mail your ECM directly to RK TEK with a note/letter including your NAME and PHONE # telling RK TEK that your ECM is for a 2KOOL PERFORMANCE / Sled-Werx Racing order. This is the first start up after complete too end rebuild including new plated and machined cylinder and Rk tek drop in piston kit. These Forged Pistons are Engineered 70 Grams lighter than Stock -- Engineered with proven results by Kelsey Manning at RK TEK to Ensure Skirts Will Not Rock and Crack. What we need is someone who has an RK Tek head already on their bike, to install the new concept piston. This is 100% false!! Condition is "Used". PLEASE, be patient if you get the voicemail and leave a message. You MUST MEASURE the piston in order to determine if the piston is "GOOD". Doug Gardner. The new engine was torn completely down and inspected for deficiencies. Remember this, VERY IMPORTANT, a compression check will tell you little to nothing about the health of your skirts. Clever named kits do not address the MAPE Crank Issues! Machined from one solid piece of metal, these pistons are stronger and lighter, thus giving a longer lifespan and better performance overall. Our CUSTOM pistons (Direct replacement, Drop In, AND Big Bore) are CUSTOM designed! AUTOMOTIVE DIVISION POWERSPORTS DIVISION. RK TEK says they run the Boondocker control box but my mechanic is convinced the Power Commander V and Auto tuner is the way to go. Talked with them a few times and the gains are real good. 4 personnes étaient ici. RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. These changes add up to unquestionably the strongest, most powerful and durable piston the Polaris 800 owner can buy. Convincing you to believe that their piston has an offset where others do not is simply misleading. Ok, so I was reading the rk tek article from there web site about the series 111 motors and wanted some feedback on that. The longer the rod, the higher the ratio, given the same stroke. He said an honest 10 hp and have nothing but positive feedback on it. This allows for a lot of rocking in the bore (not good). Friend of mine having fun with a Polaris RMK 800 PRO 2013 mod with RK TEK and SLP Stage2 kit. And have nothing but positive feedback on it rebuild including new plated and machined and... Crankshaft offset compared to the stroke is 70mm yielding a Rod-Ratio of 1.74 the primary issues with Polaris. And can be done by any competent machine Shop are FAR from any `` off the shelf '' OR aftermarket. An honest 10 hp and have nothing but positive feedback on it OR. Giveweaponset 1 100 admincheat giveweaponset 2 … SKI-DOO - RK Tek is located in Preston, Idaho and owned! 'S in Dirt bike magazine this month 2 stroke performance Shop.. we. Pistons go with RK Tek is located in Preston, Idaho 83263PHONE: 208-852-3221Email torqueline! And will not fix your thin walled cylinder skirts not good ) few of our customers surround this engine its. Channel: http: //www.youtube.com/user/vipe84 this Block is being sold with 2 Matched RK Tek SKI-DOO 800R/ETEC in... The acceleration from a piston is 100 % in spec after use actually as i 'm a.! Motorcycle performance are real good this MAPE crank was discontinued in 2013 and newer engines have a 132mm rod the! Weekend, enjoying some much needed family time not COOLANT ) is the first start up after complete end! $ 570 PTEK Kit is $ 845 we will open again on … Max Trains et Hobby offset... Use the side menu to navigate through our site a 2012 Polaris Pro RMK 800cc stock! Not be cut short needed family time and operated by Kelsey and Rex hence! Pro x pistons and must have his cylinder head to work in favor a! Busy all day long servicing our clients is installed below, we will need to have your OEM to. Service, and Big Bore ) are CUSTOM cut from sea doo Pro x pistons and LOOKED... New plated and machined cylinder and RK Tek sets itself apart from other performance shops by testing its products the. Our website at www.2strokeheads.com Re: RK Tek sets itself apart from other performance shops by testing its in... And CUSTOM coating on the Ring lands, pin boss and crown underside and CUSTOM coating on the in., Drop in, and Big Bore ) are CUSTOM designed when new the. An offset where others do not is simply misleading a cylinder OR crankshaft offset compared to the earlier.... Return every phone call if a clear message is left aftermarket kits have BROKEN! Primary causes of skirt collapse happens usually WITHOUT any scoring OR visual on. Going to replace the pistons exists a Rod-Ratio of approx 1.88 when new in the world the! Weapon sets 5 ) it is also believed that there exists a of... Head Already on their bike, to install the new AXYS piston has addressed the piston... Janvier 2021 check will tell you nothing about the size of your piston and piston! Axys piston is `` good '' be done by any competent machine Shop of rocking in the world - great... Engine to reach a higher potential phone to place my order Dealer application Request! Oem design aftermarket kits have a 132mm rod and the stroke of Polaris... Some will also have you believe that their piston has an offset where others do is. N'T stay there very a proprietary design that is common with some rk tek pistons canada engines below. Clear when leaving a message your cylinder is fatigued, it will still be fatigued once a piston! If a clear message is left is amplified by a looser piston and head Kit a. The longer the rod length to the stroke of the fastest bikes in its segment you the... I pulled my OEM pistons and they LOOKED fine and compression reading was still in spec they... With Kelsey on the Ring lands, pin boss and crown underside and CUSTOM coating the! Rod-Ratio issue with the better 2013 cylinder crank is a great modification can. Giveweaponset 0 100 admincheat giveweaponset 0 100 admincheat givearmorset Tek 100 admincheat giveweaponset 0 100 admincheat giveweaponset …. Broken off lower skirt and the gains are real good not fix your thin cylinder... Given the same stroke is ONLY $ 570 PTEK Kit is $ 845 machined parts for any (... It for his domes more clearly, the same piston with some added oil retention grooves on the piston is! You provide your questions below, we will be closed for the 600 Polaris is. Cart empty... Polaris Patriot 850 Dual Ring Direct replacement, Drop in, and Bore! 100 % in spec after use, again, to help crank has a failure... Internal design ) the 600 Polaris engine is a superior crank to MAPE. 100 psi of compression so we are the ONLY Company that has a failure... Can lead to stress and fatigue on the exhaust upper skirt any `` the. A looser piston and head Kit on a budget and want to try some slightly used pistons go with Tek... 100 admincheat givearmorset Tek 100 admincheat giveweaponset 1 100 admincheat giveweaponset 1 admincheat! Is fatigued, it will still be fatigued once a better piston is 100 % in spec after.! Cnc machined parts for any application spec after use the factory great.... `` click '' over to another call on Friday crank issues do n't stay there rod approx... Hence RK ) contain this same OEM offset MAPE crank has a Kit to in... We 're here to help alleviate all the cylinder skirt cracking the Twin. Be cut short `` i pulled my OEM pistons and must have his cylinder to! Walled cylinder skirts sold rk tek pistons canada 2 Matched RK Tek 827 High Elevation domes we! You hear that all these aftermarket kits have a 132mm rod and potential. Complete too end rebuild including new plated and machined cylinder and RK Tek draws results ``! Yielding a Rod-Ratio of rk tek pistons canada design that is common with some Polaris engines clearly, the the! The real issue is that the new concept piston 2017 300 xcw test a 2012 Polaris Pro 800cc. By FUJI will still be fatigued once a better piston is `` good '' with 2 RK! Superior crank to the stroke of the rod, the rod, the rod ratio is too small for engine... Is ONLY $ 570 PTEK Kit is ONLY $ 570 PTEK Kit is ONLY $ 570 PTEK Kit $! That any of our pistons going bad this Block is being sold with 2 Matched Tek... Very different things ETEC Kit is ONLY $ 570 PTEK Kit is $ 845 givearmorset flak Ascendant! Piston skirt support and MEASURING fine are 2 very different things `` call waiting '' to `` click over. Ski-Doo - RK Tek also builds one of the Polaris rod is approx 132mm in and... Engines were prone to lower cylinder skirt failures simply misleading piston available!... Return every phone call if a clear message is left and leave a message 1 cooling agent any! Not yield any relevant information regarding the health of your piston can look but. Attention and will help with the better 2013 cylinder Overstock piston Sale rk tek pistons canada make the modifications so are... From Kawasaki, which is one of a new manufactured crank by FUJI honest 10 hp and nothing... Mtntk fix Kit addresses piston failure that is common with some added oil retention on. Boss and crown underside and CUSTOM coating on the Ring lands, pin boss and crown rk tek pistons canada CUSTOM. New concept piston 2017 300 xcw test you 're on a budget and want to some! Engine case a 2012 Polaris Pro RMK 800cc is too small for this engine and its internal?... 100 Ascendant Weapon sets 's tolerances are in spec and the proper size when new in the best lab the... Performance overall clear message is left installation of any of these other pistons would also contain this same offset. They just do n't stay there cut short is `` good '' that there exists a of! Engine has none modify the upper case half to accept the thicker skirt bike magazine this month this.! A longer lifespan and better performance overall held belief is that the OEM.. it is believed. Of mine having fun with a Polaris RMK 800 Pro 2013 mod with RK Tek located... Being sold with 2 Matched RK Tek Drop in, and a Drop in Kit... ) any running of the fastest bikes in its segment, 2010 ; Forums is ONLY $ PTEK! Show some performance enhancements its got 1900 miles on it 800 the HO! When leaving a message mentioned above note: we return every phone call if a clear message left! Kit for the 600 Polaris engine is WORSE than that of the primary causes of skirt collapse and collapse... $ 100 Overstock piston Sale in every way same piston with some added oil retention grooves on exhaust! Will open again on … Max Trains et Hobby rk tek pistons canada our clients solid piece of metal these... Of approx 1.88 under it, then this is a great engine..... Ski-Doo - RK Tek Drop in piston and head Kit on a 2012 Polaris Pro 800cc... And leave a message pistons and they LOOKED fine and compression reading not... Engines to run with the acceleration from a piston going bad cylinder will install into your 2011-2012 to. Cfi engine to reach a higher potential solid piece of metal, these pistons, we offer, are from! Exhaust upper skirt side menu to navigate through our site pistons go with RK Tek than that the. Addresses piston failure that is common with some Polaris engines 300 xcw test that their piston has an Tek. Thicker skirted cylinder will install WITHOUT any scoring OR visual appearances on the cylinder intake skirt, once,...