- 14" megaphone muffler
 - Black ceramic coated finish
 - 2" outlet permanent baffle
 - Distinctive look/aggressive sound (2” optional noise reduction insert sold separately)
 - No fairing modifications required
 - Aerospace quality, ultra lightweight stainless construction
 - 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.