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. Other companies use Wossner but they are not the same design as ours. This is a full top end kit that is essentially an install and go kind of kit. Free shipping for many products! They have very a proprietary design that is unique to ALL of our pistons. Heat is one of the primary causes of skirt collapse and skirt collapse is ONE of the primary issues with the OEM design.. After some teardowns and inspection of MANY of the stock pistons. The store will not work correctly in the case when cookies are disabled. Have a good one man.Thank you,", RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). Wossner Pistons - Unmatched forged piston quality compared toany other manufacturer. Remember this, VERY IMPORTANT, a compression check will tell you little to nothing about the health of your skirts. We offset our wrist pin .020" towards the exhaust side to reduce skirt loading during the power stroke. leaving the cylinder rough like the standard finish will lead to premature failure and ring and piston skirt breakdown. NOTE:RKTTop end gasket kit is comprised of the Base Gasket, Y -Pipe Gasket, Exhaust Valve Gaskets (Non-HO ONLY), and Inner Compression O-rings. 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. Our custom piston HOLDS its tolerances.. Can't say that for many of the other kits.. Make no mistake SPI Piston Rings For POLARIS 800 AXYS PRO RMK/LE 2017-2019 85.00MM Standard Bore. Anything else you think i should know bud shoot me a pm when you get a chance, i know your flat out. Weengineereda wider ring land between the rings to reduce ring temperature. If cylinder needs replating then Price is $4495 or $3400 us approx. No core, no problem. - Completely remanufactured crankshaft with all new components, bearings, new drive gear and seals. GIVE US A CALL: (715)483-3003, We recommend turning up your oil pump 1 turn on non-HO (Axys) motors. On this sled also all the annoying vibrations and 3000rpm death-shake are gone. With our custom piston geometry, the porting is altered resulting in huge HP and Torque gains! Opens in a new window or tab. NOTE: This REV 2 kit WILL require a fuel controller (Boondocker OR Power Commander) AND will require aftermarket reeds (Boyesen or Vforce) AT any elevation BELOW 3500ft. Excellent communication, 2 week turn around and it runs better than when I bought it new! Item: 323454969454 External Wastegate. THIS is the #1 reason behind these cylinder failures associated with the Polaris Engine!! Please note: Most parts are now available for purchase online, but as always you can also purchase them at your local dealership. Fix Kit Replacement Piston . Will Polaris extend warranty due to stop ride order on 2022 sleds?? BMP 2010 Dragon/RMK 800 Bolt-On Performer Kit, BMP 2008-2009 Dragon/RMK 800 Bolt-On Performer Kit, Sending in cylinder for honing? Find many great new & used options and get the best deals for 2016 Polaris 800 Rush Primary Clutch 1323210 Axys Switchback Assault RMK SKS at the best online prices at eBay! Reliability is NOT compromised in any way, shape, or form and the cost is VERY affordable. So, doing a compression check will not yield any relevant information regarding the health of your PISTON SKIRTS. MCB Stage Kits - Customers asked and we responded with Quality and Value. Some of these items ship sooner than the others. $49.99. Free shipping. Complete with everything you need to get on snow. It would have required a HUGE final bore machining/boring error for this to happen again, this is a clever gimmick to try and sale you something! Polaris Rear Bumper 2016-2022 AXYS 600 / 800 / 850 RMK 155/163 / RMK Assault / SKS 155. 155 track Extras: Boondocker turbo, was a race kit built for backus racing, with tunnel dump B-pwr 36" front end Exit shocks all round set up for 200lb rider Stage 3 - This kit includes everything in our Stage 2 kit, PLUS completely remanufactured and properly RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. If your vehicle is currently supported with online ordering, you will be redirected to the brand specific website. FINDINGS: We find that the OEM Polaris Piston will NOT hold its form after a very short time of running. NOTE:RKTTop end gasket kitis comprised of the Base Gasket, Y -Pipe Gasket, Exhaust Valve Gaskets (Non-HO ONLY), and Inner Compression O-rings. Good luck finding that these days. USA & International; Australien; Kanada; Frankreich; Our engine durability kit was designed to last. engine kit for the do-it-yourselfers. US $239.98 2015 SwitchBack 600 Adventure 2016 SwitchBack 800 Adventure 2015 SwitchBack 600 Pro S SKU# 2881055 2016 SwitchBack 600 Pro S Backcountry riding is about finding deep snow and carving your own path. Rev6 offers quality parts that are proven to last. Your head cools so efficiently that i never could get the temp over 133F it would just sit there. or as low as $84.00/mo with. For the "Cheater Head" option none of this applies. The RK Tek Pistons were a full 27 grams lighter and exactly the same weight to the gram. Here are the Polaris part numbers and parts fiche link you need to do the conversion for the larger T-Stat, Fiche # 1: https://www.ronniesmailorder.com/oemparts/a/pol/5a3a5cf987a8660eb45e7c92/engine-cylinder-all-options, Fiche #2: https://www.ronniesmailorder.com/oemparts/a/pol/5a3a5ced87a8660eb45e7c80/engine-cooling-system-all-options, ________________________________________________________________________________________________. We, REALLY, do address the OEM piston design issues with this kit. 2016 POLARIS PRO RMK 800 AXYS CAPACITOR, 22000 MICRO (Fits: 2016 Polaris Pro RMK 800) $39.99 Free shipping 2016 POLARIS PRO RMK 800 AXYS RIGHT SIDE PANEL (Fits: 2016 Polaris Pro RMK 800) $179.99 Free shipping He rode an Axys 800 Polaris . $3695 cdn. Can I ask you a couple of questions about pistons and bores? MUCH Smoother running at ALL RPM.. Piston side loading is reduced due to our unique piston's weight. Engine Kits are designed and assembled by our Master engine technicians We also have cores for those that dont have one. The addition of the .250" spacer under the cylinder corrects cylinder volume for the 800 CFI/CFI HO resulting in more efficient power. The pistons come with new wrist pins and c-clips. You must log in or register to reply here. JavaScript seems to be disabled in your browser. How many miles do you have on your sled? ", "Sent both mine and my wifes etecs to Scott and the guys at MCB, outstanding service, and they both run flawless", "Had MCB build 2 engines this last fall and with over 1500 trouble-free on each miles I couldnt be happier", "Sent my 2012 Etec 800 to MCB and glad I did. I've currently got a very close friend that has a 2016 ZR 8000 that has given him fits since he bought it with 750 Miles on it at the end of 2019. Description Description 2016-2018 Polaris Axys 800 Master Engine Motor Rebuild Kit New Rev6 crankshaft with forged rods, Better index and runout than factory! We also have cores for those that dont have one. . As you know MCB Performance has been focused on providing the finest engine components for many Please Subscribe to Dynotechresearch.com for the latest in Performance Testing. Be a Subscriber. If running 0-5000' you must run an SLP Reflash Tuner Part #70-800. SKU: PCK-216 Categories: . $599.95 In stock SKU BMP-P800DK Durability kit fits all year 800 CFI & AXYS 800 CFI HO motors Custom designed taller pistons have less piston slap Rings have been spaced apart for better cooling Pistons have a .020" wrist pin offset to take the load off the intake side Forged pistons are more durable and collapse less than factory pistons The truth is that the OEM piston's tolerances are in spec, they just don't stay there. Register on our forums to post and have added features! these cranks are trued and indexed to perfection using the finest Koyo and FAG bearings and genuine Both very different in design and performance. Polaris PRO-R Drop In Kit 2011-2015 CFI 800. Brand New. C $180.54. Bikeman Performance. stock reeds work fine but the aftermarket reed systems will work better! This helps provide extra lubrication on the intake side of the piston. These new pistons are made from stronger alloy to reduce skirt collapse over time. 2016-20 Polaris AXYS 800 RMK Clutch Kit with Adjustable Weights. __________________________________________________________________________________________________________________________________. Free Shipping on all Domestic Orders International will use Ebay Global Shipping Here at Northern Crankshafts we have been in the Power Sports Business for over 36 years and have seen it all, this kit meets our HIGH E xpectation level of product quality. Enjoy and Safe Riding! We design the piston that should have been installed from the factory. These are available with MCB ____________________________________________________________________________________________________. 2018 Assault 800 . -Cylinder with a fresh replate and HG7 hone: (Cylinder number is cast on the mag (recoil) side of the cylinder), -OEM Replacementpiston kitwith ring end gap already set, -Full top end gasket kit: exhaust, inner o-rings, base gaskets set to the cylinder length of your new cylinder, Note: As of 11-16-22 All Top End Kits will have a High Silicon Content OE Replacement Piston, Prices are subject to change without notice, due to part cost changesand avaialability. PRIMARY CLUTCH SPIDER WIDE ROLLER PIN BUTTON KIT POLARIS AXYS RMK 600-850 11-20. Enjoy and Safe Riding! Please do your research! These kits are available for just about every conceivable engine out there with more Monday-Friday For the best experience on our site, be sure to turn on Javascript in your browser. So, it extremely safe on bad gas! Performance parts and accessories for Polaris PRO RMK 800. We have found it common to see the piston to cylinder wall clearance DOUBLE in less than 1000 miles.. Add to cart. There IS a problem with the pistons . This will allow extended ring and piston life as well as less heat buildup. JT2JZ 1.56K subscribers Subscribe 72 Share Save. Overview & Specs Instructions & Support Designed to Fit Put my drop in kit in today, nice stuff. 4. They are also lighter than the OEM Piston and that will help with the acceleration from a stop. Stage 2 includes: Anything else you think i should know bud shoot me a pm when you get a chance, i know your flat out. No tuner box. You can have a BROKEN off lower skirt and the compression reading will not change! Since the injector sprays that side of the pistons, the fuel washes the oil off. Includes pistons, rings, circlips, wrist pins, cylinder bolts, cylinder spacer, longer alignment pins, & 2 base gaskets. Total price: Add all three to Cart. Above 3500Ft. We designed Gas Ports into our piston These are small ports that allow oil film from the underside of the piston through the piston to help lubricate high load areas. "Wanted to thank Scott for the extra technical direction. learn more, 801-489-8697 Shipping calculated at checkout. BEST PART: NO AFTERMARKET PIPE, Fuel controller, OR anything else is needed! If running 0-5000' you must run an SLP Reflash Tuner Part #70-800. Have a good one man. Due to the added case volume, you will see a 2-3 HP gain! While there are some "What were they thinking" aspects of this engine.. in OUR opinion the rod ratio is not one of them.. Less Stress = More longevity and more power! C $542.55 + C $67.83 shipping. You are the salt of the earthYou are the light of the world Polaris 800 Axys Cfi Engine Durability Rebuild Kit W/ Crankshaft 2016-18, Polaris 800 Axys Cfi Engine Durability Rebuild Kit W/ Crankshaft 2016-18 2, Polaris 800 Axys Cfi Engine Durability Rebuild Kit W/ Crankshaft 2016-18 3. People always state "I pulled my OEM pistons and they LOOKED fine and compression reading was still in spec! Nov 30, 2019 #4 Ol' Skool Active VIP Member Joined Sep 9, 2010 Messages 168 Reaction score 28 Location Edmonton I was lucky enough to own 2 Axys 800's (SKS 155 and a Assault 155). The stock pistons were 3 grams different in weight. I know since 2008 the Polairs 800 Small block has cause a flurry of this question Mr. Dan. 2016 axys 800 with boondocker turbo. Great work! The relatively short rods and pistons have been the cause of the short life of the stock pistons and rings. Rev6 offers quality parts that are proven to last. Finally used MCB's kit and have over 500 on this kit!, WAY smoother running! ", "I had my 2015 RZR 900 engine rebuilt by MCB's Engine dept. Ships to: US, MX, DE, JP, All kits are available with the MCB Classic series pistons or can be ordered with the MCB Polaris Axys RMK 800 turbo kit. , For over 2 years, I have been purchasing snowmobile engine parts and accessories from your company, MCB Performance. IT IS NOT due to a rod ratio error! Please see below to learn more about our solution! . BAR NONE! The Polaris factory piston is great quality vs others that say there better? SKU:VI5174223.. Ir al contenido. If you have an account, sign in with your email address. Their service is great and prices affordable. The spacer plate is made from precision ground aluminum which we nickel plate. In fact, we designed this kit to run on the oxygenated fuel (Ethanol) and still use the NON-ETHANOL factory resistor!! 10lbs boost 100LL. Turned the oil pump up one full turn and running 91 octane on the non eth resistor. MCB Performance has expanded our Stage Engine Kits to now include POLARIS! $49.88. We have been designing our own pistons since 2005. Trued. 2. Comprend tout ce dont vous avez besoin pour remplacer les roulements et les joints sur votre Arbre de transmission ou arbre intermdiaire . NOTE: The RK Tek Line of Pistons are VERY different from any other production piston. Have no worries.. HELP is finally here for the 800 Polaris CFI Engine! The Stage 3 package from SLP is a solid setup for any natural aspiration snowmobile enthusiast! I just lost a top end with aftermarket pistons and I am considering axys pistons. thermostat, OE oiling check valves, Enough tubing to replace all the oil lines with premium grade non- Trued and inde Best engine rebuild kit Polaris 800 Rush, RMK, Pro-R, RMK Pro, Switchback assault. Complement the outstanding performance of your sled's 800 Cleanfire engine with the convenience of electric start. First for my 800 and now My 1000. We have continued to grow and expand our product lines and further fine tune our Pistons and - Completely Remanufactured Polaris OEM 2208745 crankshaft with all NEW wear-components, Polaris OEM bearings, ne Genuine MCB Stage-2 rebuild kit for ALL 2008-2010 Polaris 800's. A Pro R 800 and an Axys 800, both Switchbacks. AXYS RMK 800 AXYS RMK 600 PRO RMK 800 . We have streamlined these kits now so that there are 4 options that are very user friendly: Genuine MCB Stage-2 rebuild kit for Polaris 850 Patriot motor. Our CUSTOM pistons (Direct replacement, Drop In, AND Big Bore) are CUSTOM designed! (14.5 lbs on RMK, RMK Assault and SKS models) and provides an additional 12.4 horsepower increase over stock. The old setup when idling the coolant temp would gradually climb of course and continue to climb without hesitation. Big Bore Cylinder Kit - 61006-K01 Cylinder Works $1155.56 Part #: 1402198 Mfg Part #: 61006-K01 Standard 93mm Bore Cylinder Kit - CW60007K01 Cylinder Works $751.16 Part #: 1402206 Mfg Part #: CW60007K01 Standard Bore 93mm High Compression Cylinder Kit - CW60007K01HC Cylinder Works $888.76 Part #: 1402207 Mfg Part #: CW60007K01HC They require ZERO added "treatment"! This is simply a sales "gimmick". Please see below to learn more about our solution! DOWNLOAD THE INSTRUCTIONS HERENo single action on your part is as important as proper engine break-inBREAK-IN RESPONSIBILITYDo not operate at full throttle or high speeds for extended periods during the first three hours of use. Great tech assistance throughout the process. Location: Minneapolis, Minnesota, US, This kit REQUIRES a core cylinder from you. Smooth. Sled rips, turbo kit has been flawless. We have measured 100's of these cylinders and NONE of them have been out of spec! You want a dyno report from DynoTech Research Click on the link below, DYNO REPORT on REV 2 Kit- (2014 800)(<--clicky). 6 HP gain with no EFI Controller! There are yet no reviews for this product. When exiting curves, pickups are strong and without any hesitation. The RK Tek Pistons address this issue 100%! Array $460.00 Snowmobile Make: Model: Year: Options: (Choose One or More) Wrist Pin Bearings (Pair) +$45.00 Team Rooster Weights +$210.00 Boondocker Controller Box +$455.00 Power Commander Controller Box +$495.00 Find many great new & used options and get the best deals for POLARIS RMK PRO, RUSH, SWITCHBACK AXYS 600/800 CFI VFORCE 3 REEDS 2016-2018 at the best online prices at eBay! The stock pistons were 3 grams different in weight. The RK Tek Drop in Kits provide both of those. NO FUEL Controller required!! PRIMARY DRIVE CLUTCH REBUILD KIT WITH BUSHINGS POLARIS AXYS RMK 600-850 11-20. We also have found that the ,annoying, low RPM vibration (handle-bar "death shake") is gone with the install of these pistons. 2016-20 Polaris AXYS 800 RMK Clutch Kit with Adjustable Weights. Due to the added case volume, you will see a 2-3 HP gain! If you are ordering cheater heads, we will need to have your OEM heads to make the modifications. This is simply a sales "gimmick". The MTNTK "FIX KIT" or "DURABILITY KIT" is the proven solution to the piston failure that is common in the 2008 to 2014 POLARIS 800 engine. 2016 Polaris Industries 800 Pro-RMK 163 3 in Grande Prairie 08/02/2023 Nice low km electric start 163. It may not display this or other websites correctly. Polaris Patriot 850 Dual Ring Direct Replacement Pistons. $8,100.00 2016 POLARIS PRO RMK AXYS 800 163" 2.6" Strathcona County 07/02/2023 4300km on mine before it needed a rebuild. Please ship to our 920 Pine Street Address, Skip to the beginning of the images gallery, Durability kit fits all year 800 CFI & AXYS 800 CFI HO motors, Custom designed taller pistons have less piston slap, Rings have been spaced apart for better cooling, Pistons have a .020" wrist pin offset to take the load off the intake side, Forged pistons are more durable and collapse less than factory pistons, Lubrication holes in the skirt of the piston designed to lengthen piston skirt life, Gains 6-7 horsepower and even more for motors down on compression, A must-have for motors with over 1500 miles on stock pistons, CAN USE A POWER COMMANDER OR TORQUE LINK TUNE AS WELL FOR BETTER RUNABILTY. Adjustable Boost. Stage 4 - This is MCB's most complete kit and comes with all of Stage 3 plus the following, OE Group 1 - cast OEM Polaris factory Pistons Group 2 - cast SPI factory import copy Group 3 - cast SPX factory import copy Group 4 - cast Kimpex factory import copy Group 5 - cast OEM Arctic 800 converted for Polaris Group 6 - cast prox factory copy I highly recommend their dual ring cast pistons as an OEM replacement in any snowmobile engine!". You do NOT have to treat these pistons any different (in any way, shape or form) than your stock piston! Even when brought up to 4500-5500 rpm the temp would slowly climb to 140F. The difference between the 2015 and 16-current cylinders is the water passage ways below the VES system were press fit in 2015. in 2016 and up they are threaded (more reliable). No fueling changes required above 5000. I found some cheaper spares they're made by Panasonic got them thru digikey.ca. This kit WILL outperform ANY other "Bolt On" product you can buy for this engine! They will NOT fail unless they are subjected to a low fuel or high heat condition! This allows the engine to produce more power and rev quicker. Array $995.00 Snowmobile Make: Model: Rev: Year: Head Color: Altitude: Elevation Unit will be used Website By, Polaris 2011-2012 PRO RMK 800 Complete Top End Rebuild Kit, 11-12 Pro RMK 800, Complete Rebuild Kits, Cylinders & Piston Components, Polaris, Snowmobile Models, Polaris 2008-2016 PRO Dragon RMK Replacement Piston Kit, 08-10 Dragon 800, 11-12 Pro RMK 800, 13-15 Pro RMK 800, Cylinders & Piston Components, Cylinders & Piston Components, Cylinders & Piston Components, Polaris, Snowmobile Models, 14-17 Sportsman, RZR, Ranger 700-800 Core Tear Down, 07-15 Ski-Doo 800R E-tec/P-Tek Core Tear Down. Yes, this piston is much lighter than the OEM piston and having a lighter piston will reduce piston side load pressures AND reduce the stress on the crank! and after breaking it in we went on a 200 mile 2-day poker run. Learn more sku:RZRXPP CNC machined from 6061 billet aluminum. New. TOP END OVERHAUL. Customers wanted a simple few choices to match what they needed Classic series pistons or MCB Forged series pistons. Sponsored. Top Rated Seller Top Rated Seller. Smooth. Basically wears down the intake side of the pistons extremely fast and it's ~$800 for parts to rebuild the top end yourself with new reman monoblock and new pistons. EPI also offers high quality replacement driveline parts such as Axles, U-Joints, CV Joints, Front End and Suspension parts, Brakes and more. I put 9K miles on my '12, replaced pistons (aftermarket replacement for OEM, not durability kit) once along the way. Find many great new & used options and get the best deals for PRIMARY DRIVE CLUTCH REBUILD KIT BUSHINGS POLARIS INDY RMK 600 700 800 850 900 at the best online prices at eBay! _______________________________________________________________________________________. 2016-2022 RZR 1000 Stage 3 Performance Clutch Assembly. 2017+ Polaris RZR-XP1000/XP4-1000 & RS-1 Spring Kits $860 2014-2016 Polaris RZR XP1000/XP4-1000 Spring/Crossover Kit $860 Polaris Turbo-S Shock Upgrade $2,200 SLED SHOCKS View all Polaris Snowmobile Shocks From $250 Velocity Series From $425 WALKER LINKS - SET OF 2 $405.00 Quantity Add to Cart Full details Share NEW LEGEND II UTV WHEELS NEW APPAREL Polaris 2877883 OEM VES Full Synthetic Oil, 1 Gallon. US $239.98. Tried 2 of the "other" brands of Durability kits both lasted less than 100 miles. 8 watchers, 0.0 new watchers per day, 1,628 days for sale on eBay. We, usually, end up altering MANY of the OEM piston's design aspects and "correct" the short-comings we feel are present. Description Polaris 2013-2016 PRO RMK 800 Complete Top End Rebuild Kit Upgraded replacement pistons with molly coated skirts for better break-in Standard Bore Replacement Pistons Includes the Following Parts: - STD Bore Upgraded Piston Kit - Complete Top End Gasket Kit - Wrist Pin Bearings Pull and go. On all models, we recommend pre-mixing your fuel at 100:1 in the tank when possible. I agree with Dan on this. ECU reflash from your phone! hardening line, a tube of very specific case sealant, and full instructions including torque values and MCB Engine Rebuild Kits STAGE - 2 POLARIS, MCB Engine Rebuild Kits: STAGE - 2 SKIDOO, MCB Engine Rebuild Kits: STAGE -2 ARCTIC CAT, MCB Engine Rebuild Kits STAGE - 3 POLARIS, MCB Engine Rebuild kits: STAGE - 3 SKIDOO, MCB Engine Rebuild kits: STAGE - 3 ARCTIC CAT, MCB Engine Rebuild kits: PLATINUM SERIES - SKIDOO, Polaris UTV / ATV Engine Performance / Race, Kawasaki Watercraft Stage 1 Top End piston kits, Watercraft Stage 1 Top End Piston kits Kawasaki, Polaris, Sea Doo, Yamaha and Tigershark. You are using an out of date browser. Compression reduced and so is horsepower. Reliability is NOT compromised in any way, shape, or form and the cost is VERY affordable. The Panasonic CM1A-R-12V is the same as the Napa one. From $769.95 View. We recommend turning up your oil pump 1 turn on non-HO (Axys) motors. components we use in our Engine program in a COMPLETE package so they can have a plug and play All cylinders from us have the HG7 hone, which really make your pistons and rings last alot longer. I am having flash backs of the 90's with your long post and good info Hahahaha. Headlight Delete Kits. $109.97. "Real people with real experience and Professional! FOR SALE! Axys-Stage 3. 2881055 Polaris New OEM Axys Deep Snow Mid Windshield. The REAL "HELP" will come in the form of 2 Custom Pistons and a Custom Head that will completely transform your engine into what it should have been from the Factory! - YouTube 0:00 / 19:10 POLARIS 800 RMK PRO AXYS FIX IT KIT. These 9 groups of 10 sleds all get a fresh rebuilds All get brand new OEM cylinders. C $132.07. Appreciate the insight on the polaris 800, considering options on my 14 pro engine before my big BC trip in February. We've been in business for almost 30 years developing world-class CVT Clutch Kits. Polaris Brake Disc Rotor Pro RMK Axys Khaos Matryx Patriot Boost OEM 2204712. . The stock 800 CFI motor runs a piston that is a total height of 2.885". For a better experience, please enable JavaScript in your browser before proceeding. SKU:GS4606190.. Instruction Sheets: More power everywhere! Learn more. So i have an 11 assualt rmk. Free shipping. Please be aware of "CLAIMS" that the OEM cylinders are over-sized from the factory!! It would have required a HUGE final bore machining/boring error for this to happen again, this is a clever gimmick to try and sale you something! NOTE: This will address the issues associated with the OEM pistons! With our multi step process and torque plates we use in the CNC hone we can produce a much smother finish, and a much straighter bore being precise down to the ( tenth ) ..0001. I'm gonna try for some more info lol. I think we should rename it to the Triple Threat! We also extended piston life by slightly changing the ring location, adding lubrication holes on all four corners of the piston, and Teflon coated the skirts.