• 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 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 Brock's map support program at no additional charge

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.