• 14" megaphone muffler
• Show-polished finish
• Maximized power gains on stock and modified engines
• 2.25" outlet permanent baffle
• Larger diameter outlet provides increased exhaust flow
• Distinctive look/aggressive sound (2.25” optional noise reduction insert sold separately)
• No fairing modifications required
• Aerospace quality, ultra lightweight stainless construction will shed 15 lb. of dead stock weight
• Two 12mm O2 bungs pre-installed on headers and one 18mm bung for wideband O2 sensor
• Includes (Emissions/PAIR) block off cap and instructions for decel-pop reduction
• 3oz. tube of Permatex Ultra Copper® supplied with exhaust system purchase
• 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 S1000RR Alien Head 2 sound clip

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The Follow-Up To Our Best-Selling Exhaust System

The Alien Head 2™ offers a full through 2.25” diameter secondary section for increased exhaust flow and builds upon the legendary, race-proven performance of the original Alien Head™, while adding a distinctive look and deeper exhaust tone. This system is a must for the sportbike owner who’s never quite satisfied with factory power.

Manufactured to stringent specifications, Brock personally designed and hand-tuned the Alien Head 2™ full exhaust system to find the ideal balance of performance and attitude for the stock to highly modified sportbike. The Alien Head 2™ exhaust system stands as the benchmark of cutting edge power, design, and style.