2021-2025 Yamaha Mountain Max 800 Performance Products & Parts | Speedwerx Inc.
For tech info, dyno tests, and videos, check out the product pages below or click here Technical Information & Videos
The wait is over! Yamaha returns to the two-stroke mountain market in a big way with the Mountain Max 800, which is virtually identical to it's Arctic Cat M 8000 Alpha One cousin so the products we make and sell for the Cats are a direct fit for the Yamaha as well. The C-TEC2 794cc engine with Semi-Direct Injection (SDI) delivers increased performance and rideability in the 160-hp class. It provides crisp throttle response, outstanding mid-range and class-leading performance in addition to improved fuel mileage and reduced oil consumption.
You know we can't leave well enough alone though- we've developed many performance parts and accessories for the new models with the same quality, durability, and of course the Straight-Up USA Horsepower that has made us known as the Worldwide Leader in Arctic Cat Performance! We had many machines equipped with our Stage 2 Exterminator Kits out on the snow in the 2017-2018 season, and riders were raving about how they took the smooth running, yet hard pulling 8000 C-TEC2 to another level, with a fun factor above and beyond any other stock displacement, naturally aspirated machine whether it be a ZR trail blaster or a M-Series mountain masher. Those riding M 8000's equipped with our Supercharger Kit reported rock solid pull and go reliability, with power, consistency, and instant throttle response that simply can't be matched by other boosted machines. For 2019, Arctic Cat has made only minor tweaks to the drivetrain on the 8000 series machines, so you can expect the same great performance with our kits and components. The big news is in the suspension department with the ZR iACT models with electronically adjustable shocks, and the new Alpha One model that is truly a game changer in the steep and deep- just add a healthy dose of Straight-Up USA Horsepower to either of these platforms to make the best even better! The 2020-2021 models have changes to the top end and injection system, but the power output is virtually the same as 2018-2019 and our Exterminator Kits and Supercharger will give you the extra kick that will put a permanent grin on your face!
-
Speedwerx Hypershift TEAM Light Tip Machined Weights // Set of 3$197.70sku:TEAM2TWEIGHTSWeights are designed for the TEAM primary clutches that come on the 2016-2021 Arctic Cat snowmobiles. All of our machined weights come heat treated and black oxide coated to prevent wear and corrosion. We offer 4 different profiles.
Learn More -
Speedwerx Hypershift TEAM Aggressive Profile Machined Weights // Set of 3$197.70sku:TEAM4TWEIGHTSWeights are designed for the TEAM primary clutches that come on the 2016-2021 Arctic Cat snowmobiles. All of our machined weights come heat treated and black oxide coated to prevent wear and corrosion. We offer 4 different profiles.
Learn More -
Speedwerx Hypershift TEAM Full Tip Machined Weights // Set of 3$197.70sku:TEAMTWEIGHTSWeights are designed for the TEAM primary clutches that come on the 2016-2021 Arctic Cat snowmobiles. All of our machined weights come heat treated and black oxide coated to prevent wear and corrosion. We offer 4 different profiles.
Learn More -
-
Speedwerx Lightweight TEAM BOSS / ADAPT Helixes // Compound Cut$187.95sku:TBH-CCustom Cut 3 Roller Versions Now Available!
Our TEAM BOSS / ADAPT Helixes are machined in-house- we shave off excess material to save .10lbs over the stock helixes without compromising strength or durability.
Learn More -
Speedwerx Lightweight TEAM BOSS / ADAPT Helixes // Straight Cut$187.95sku:TBH-SCustom Cut 3 Roller Versions Now Available!
Our TEAM BOSS / ADAPT Helixes are machined in-house- we shave off excess material to save .10lbs over the stock helixes without compromising strength or durability.
Learn More -
Speedwerx Lightweight TEAM BOSS / ADAPT Helixes // Progressive Cut$187.95sku:TBH-PCustom Cut 3 Roller Versions Now Available!
Our TEAM BOSS / ADAPT Helixes are machined in-house- we shave off excess material to save .10lbs over the stock helixes without compromising strength or durability.
Learn More -
Cam Arm Repair Kit // 2016+ TEAM Clutch$179.95sku:7639-127Fits 2016 and newer Arctic Cat with TEAM clutch. Learn MoreOut of stock -
Lightweight Kit & Components // 2012-2024 Arctic Cat M 8000 Models / Yamaha Mountain Max 800$599.95sku:SPXLWKOur Lightweight Kit lets you shed some unnecessary weight from your machine, including rotating weight!
Learn More -
Venom Products (Team) Borg Warner Hyvo Chain - 13 Wide$149.95sku:930633Venom Products Borg Warner Hyvo Chains fit all 13 wide Borg Warner gears. Made in the USA from high strength steel. Learn More -
-
Primary Clutch Holder // Arctic Cat 33mm Taper$143.95sku:0644-380 -
Lightweight Driven Clutch Spider // 2016-2021 Arctic Cat Snowmobiles / 2018-2022 Wildcat XX with TEAM BOSS Clutch$139.95sku:0648-841-MOur Lightweight Driven Clutch Spider reduces rotating weight by .75lbs to improve throttle response and acceleration.
Learn More -
Lightweight Spring Cup // 2022-2026 Arctic Cat Snowmobiles / 2022-2025 Wildcat XX with ADAPT Clutch - 2 and 3 Roller$139.95sku:LWSC-ADAPTNew 3 Roller Version Now Available!
Learn More
Our Lightweight Spring Cup reduces rotating weight by .85 lbs. to improve throttle response and acceleration. -
Universal Flywheel Puller // Heavy-Duty$130.00sku:SPXFWPWorks on 95% of flywheels we have ever come across... New updated design to work on the 8000 C-TEC2 Engines with 4 bolts!
Learn More -
Manual Chain Tensioner // 2012-2024 Arctic Cat Models$129.95sku:ACMCT -
Panel Vent Kit // 2018-2024 M 6000 / M 8000 Ascender / BLAST - 2021-2024 Yamaha Mountain Max / SXVenom$124.95sku:ACM18VKOur panel vents have an aluminum frame construction backed with stainless steel mesh to withstand even the toughest abuse!
Learn More -
Lightweight Recoil Cup // 2018-2024 Arctic Cat 8000 - 800 C-TEC2 / 2024-2026 600 / 2025-2026 858 CATALYST Models$114.95sku:SPXLWRCOur Lightweight Billet Aluminum Recoil Cup reduces rotating weight by .33lbs to improve throttle response.
Learn More -
Bottom Sprockets - Borg Warner Hyvo - 13 Wide - 34T Internal Spline - 2 & 4-Stroke Models$0.00sku:2602-XXX-2Genuine Arctic Cat OEM Borg Warner Hyvo Bottom Sprockets Learn More -
Venom Products Clutch Compression Tool$99.95sku:930003Easy to use clutch servicing tool...
Learn More -
Lightweight Snow Flap // 2012-2024 ProCross/ProClimb/Ascender models / Yamaha Mountain Max / Sidewinder$79.95sku:ACM8SF-KITOur Lightweight Snow Flap lets you shed 1.15 lbs from your machine, and allows better access to the rear bumper.
Learn More -
Primary Clutch Puller // Arctic Cat Snowmobile and Wildcat, Metric Thread$72.95sku:0744-080For 2007 and newer Arctic 8 tower and 6 tower and TEAM drive clutches with recessed torx head mounting bolt. Learn More -
Speedwerx Primary Clutch Puller // Arctic Cat Snowmobile and Wildcat, Metric Thread - Replaces AC pn 0744-080$69.95sku:SPXPCPOur puller has the same T-60 Torx head as the clutch bolt so you do not have to change sockets when removing and reinstalling the clutch. On Wildcat XX models, this puller also allows you to pull the clutch without having to remove the shock or tire. Replaces Arctic Cat pn 0744-080.
Learn More -
Lightweight Aluminum Sno-X Snow Flap Washer Kit$59.95sku:SXSFWKThe Speedwerx Lightweight Aluminum Sno-X Snow Flap Washer Kit comes with 2 - CNC machined aluminum outer washers, 2 - CNC machined and threaded aluminum inner washers, and 2 - aluminum bolts. Kit is .25lbs lighter than steel replacement parts. Washers are 2” od x .125” thick to meet ISR rules.
Learn More -
Speedwerx H5 Alloy Secondary Clutch Springs // TEAM BOSS / ADAPT Secondary - 2016+ Arctic Cat Snowmobile / Wildcat XX$54.95sku:CCH5-LWe have the rates you need... Learn More