Straightline Performance Yamaha Mountain Max 800 Lightweight Carbon Fiber Muffler

SKU: 133-103
In Stock

$499.95

  • CAD: CA$682.11
  • EUR: €460.25
  • SEK: 5,283.29 Skr
  • NOK: Nkr5,250.42
  • GBP: £391.70

The Straightline Performance Yamaha Mountain Max 800 Lightweight Carbon Fiber Muffler combines a true carbon fiber canister with fully polished stainless steel internals, inlet, and outlet assemblies to create one of the lightest performance mufflers available. Designed as a direct bolt-on upgrade, it dramatically improves handling, throttle response, and overall mountain performance while delivering a deep performance exhaust tone. The muffler is fully rebuildable, allowing the internal packing to be serviced as needed depending on mileage and riding conditions, making it a true lifetime performance investment.

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Description

Straightline Performance Yamaha Mountain Max 800 Lightweight Carbon Fiber Muffler

The Lightest Muffler in the Industry

True Carbon Fiber Construction. Premium Stainless Steel Internals.

Maximum Weight Savings with Lifetime Rebuildable Performance

The Straightline Performance Yamaha Mountain Max 800 Lightweight Carbon Fiber Muffler is the ultimate exhaust upgrade for riders looking to remove maximum weight while adding premium performance and race-inspired styling to their Yamaha Mountain Max. Designed specifically for the Yamaha Mountain Max 800, this muffler is one of the lightest performance mufflers available anywhere in the industry.

Constructed using a true carbon fiber outer body combined with fully polished stainless steel inlet, outlet, and internal components, this muffler delivers the ultimate combination of lightweight performance, exceptional durability, and premium craftsmanship.

Removing substantial weight from one of the highest points on the snowmobile dramatically improves handling, sidehilling, maneuverability, rider confidence, and overall sled responsiveness. Whether you’re climbing technical terrain or carving through deep powder, you’ll immediately notice how much lighter and more agile your Mountain Max feels.

Inside the muffler, a precision-engineered stainless steel performance core provides excellent exhaust flow for quicker throttle response, improved engine efficiency, and a deep, aggressive exhaust tone that perfectly complements the Yamaha 800 engine.

Every muffler is precision TIG welded and built to Straightline Performance’s exacting quality standards to ensure outstanding fit, finish, and long-term reliability.

Unlike disposable mufflers, the Straightline Performance Carbon Fiber Muffler is designed to provide a lifetime of service. Because it utilizes premium packing material inside the carbon fiber canister, periodic maintenance is recommended. Depending upon riding conditions, engine modifications, riding style, and accumulated mileage, the muffler packing may eventually require rebuilding.

This is completely normal for high-performance carbon fiber mufflers and is one of the reasons they remain the preferred choice for professional racers and serious riders. The muffler is fully rebuildable at any time, allowing it to provide years—even decades—of dependable performance while maintaining its lightweight advantage.

Installation is simple with a true bolt-on design that utilizes all factory mounting locations. No cutting, fabrication, or permanent modifications are required.

If you’re looking for the absolute lightest muffler available while maintaining premium quality, rebuildable longevity, and outstanding performance, the Straightline Performance Yamaha Mountain Max 800 Carbon Fiber Muffler is the ultimate choice.

Performance Benefits

  • One of the lightest mufflers available
  • Significant weight reduction
  • Better sidehilling performance
  • Deep, aggressive performance tone
  • Fully rebuildable for a lifetime of service

Compatibility

Fits:

  • Yamaha Mountain Max 800 Models

Please verify your model year before ordering.

Maintenance

This muffler is designed to provide a lifetime of performance.

Like all premium packed carbon fiber performance mufflers, the internal packing material is considered a normal wear item. Depending on riding conditions, mileage, engine modifications, and exhaust temperatures, the packing may eventually require replacement.

The Straightline Performance Carbon Fiber Muffler is fully rebuildable, allowing it to be serviced whenever necessary and continue providing premium performance for years to come.

Installation

  • Direct bolt-on installation
  • Uses factory mounting locations
  • No cutting or modifications required
  • No fuel programming required
  • Simple installation using OEM hardware

Kit Includes

  • Straightline Performance Yamaha Mountain Max 800 Carbon Fiber Muffler
  • Installation Instructions

Additional information

Weight 5 lbs
Dimensions 21 × 11 × 17 in
Type Year Make Model
Type Year Make Model
SNOW 2021 YAMAHA MOUNTIAN MAX
SNOW 2022 YAMAHA MOUNTIAN MAX
SNOW 2023 YAMAHA MOUNTIAN MAX
SNOW 2024 YAMAHA MOUNTIAN MAX
SNOW 2025 YAMAHA MOUNTIAN MAX
SNOW 2025 YAMAHA VENOM
SNOW 2026 YAMAHA MOUNTIAN MAX
SNOW 2026 YAMAHA VENOM
Type Year Make Model
Type Year Make Model
SNOW 2021 YAMAHA MOUNTIAN MAX
SNOW 2022 YAMAHA MOUNTIAN MAX
SNOW 2023 YAMAHA MOUNTIAN MAX
SNOW 2024 YAMAHA MOUNTIAN MAX
SNOW 2025 YAMAHA MOUNTIAN MAX
SNOW 2025 YAMAHA VENOM
SNOW 2026 YAMAHA MOUNTIAN MAX
SNOW 2026 YAMAHA VENOM

Customer Reviews

Allen I.
Rating: 4/5
Noticeable power gain
Picked this up for my sled and it's been solid so far. Sound is deep without being obnoxious. Noticeable pull up top after installing. Glad I made the switch.
Thu Dec 04 2025 00:00:00 GMT+0000 (Coordinated Universal Time)