Overview
20" megaphone muffler
Show-polished finish
2.25" outlet permanent baffle
Our deepest sound (optional 2.25” noise reduction insert available/sold separately)
No fairing modifications required
Aerospace quality, ultra lightweight stainless construction
Pre-installed 18mm bung for wideband O2 sensor
3oz. tube of Permatex Ultra Copper® supplied with purchase
Includes (Emissions/PAIR) Block Off Cap and instructions for decel-pop reduction
C44 eliminator plug available here to prevent FI light following O2 sensor removal
Includes Brock’s lifetime direct support package at no additional charge
Select from increased drivability/fuel mileage (pump gas) or race-proven (race fuel) track maps via our map support program at no additional charge
Click here to view logo plate color options
Click here to view installation instructions
Click here to view PAIR block-off instructions
Our Best-Selling Exhaust System
The Alien Head™ Exhaust System combines our legendary race-proven performance with the distinctive look and sound of our Alien Head™ muffler and has become a favorite with custom builders to showcase more of today’s big tire/custom swingarms. Manufactured to stringent specifications, Brock personally designed and hand-tuned the Alien Head™ Full Exhaust System to find the ideal balance of performance and attitude.
Performance upgrade packages specifically designed for stock through heavily modified bikes. The Alien Head™ Exhaust System stands as the benchmark of cutting edge power, design, and style.