Trask Assault 2-Into-1 Exhaust For Harley FXR 1984-2000

Trask Assault: Unleash the Full Potential of the FXR Chassis

The Trask Assault 2-into-1 Exhaust for 1984-2000 Harley-Davidson FXR models—including the Super Glide, Low Rider, and FXR4—is built for the rider who values performance above all else. The FXR is widely considered the best-handling chassis Harley-Davidson ever produced, and Trask Performance engineered the Assault system to complement that legacy. By replacing the heavy factory exhaust with this hand-TIG welded 304 stainless steel masterpiece, you shed significant weight while gaining dyno-proven horsepower. Whether you are running a classic 80″ Evolution engine or a high-compression Twin Cam swap, the Assault system provides the high-velocity flow required to unlock your engine’s true torque potential throughout the entire RPM range.

Internal Engineering and Ground Clearance

The heart of the Trask Assault is its specialized 2-into-1 collector. In the world of performance V-Twins, exhaust scavenging is the key to power; Trask utilizes a high-velocity merge collector that effectively “pulls” spent gases out of the cylinders. This design is paired with stepped headers that optimize gas flow for both low-end “snap” and top-end speed. Furthermore, the Assault system is designed with a “high-and-tight” profile. For the FXR rider who isn’t afraid to lean the bike over in the twisties, this system offers superior ground clearance compared to traditional long pipes or dual systems. The signature mesh-end cap adds a raw, industrial aesthetic that perfectly matches the “Performance FXR” and “Club Style” movements.

Expert Tuning & Installation Advice

As specialists in high-performance FXR builds, we know that a 2-into-1 system this efficient requires proper fuel management. Pro Tip: For 1984-1999 Evolution models, a Stage I Carburetor Jet Kit is mandatory. For the fuel-injected FXR4 or EFI-swapped models, a fuel tuner like the Vance & Hines Fuelpak is required. Without a proper tune, the increased airflow will cause the engine to run lean, which increases heat and can lead to “blueing” of the headers. Installation Note: Stainless steel will naturally change color (patina) to a golden-straw or purple hue after the first few heat cycles; this is the mark of high-quality stainless steel. To ensure the color develops evenly, wipe the entire system down with denatured alcohol before the first start to remove any fingerprints or skin oils. Gasket Note: Always use new flat-style exhaust gaskets rather than tapered ones to ensure a leak-free seal at the cylinder head.

The Sound of Authority

The sound of the Trask Assault is purely mechanical and raw. At idle, it produces a deep, percussive “crack” that perfectly highlights the mechanical symphony of the Evolution engine. Under hard acceleration, it transforms into a thunderous, high-velocity roar that commands attention. Every system is 100% Designed and Made in the USA in Phoenix, Arizona. For the 1984-2000 FXR rider who wants the best-performing, lightest, and most aggressive 2-into-1 on the market, the Trask Assault is the definitive choice. It is the perfect finishing touch for a bike built to be ridden hard.

Fitment Note: Fits 1984-2000 FXR models. May require a specific mounting bracket for models equipped with certain aftermarket mid-controls or floorboards.

Trask Assault 2-Into-1 Exhaust For Harley FXR

This dyno tested exhaust system is made from the highest quality 16 gauge steel materials, mandrel bent, and then TIG welded and gusseted for strength. Complete with custom heat shields including safety wired fasteners for a race inspired look. With potential gains from 8-10 horsepower on a stock H-D V-Twin, we are confident you will enjoy the smooth and consistent power band increase this exhaust will provide you.

Features:

• Fitments work with Mid or Forward Controls
• Suited for stock outputs up to 120 horsepower outputs
• Proudly researched, developed, and manufactured in the USA