Gen 2 to Gen 3 Hayabusa Full Exhaust Adapter Kit (sold separately) and muffler mounting bracket modification is required for Gen 3 Hayabusa (22-24) fitment.
Includes a Spacer Kit (a $24.99 value) that allows a Gen 2 Hayabusa Alien Head 2 exhaust to be used on a Gen 1 Hayabusa (99-07) without any permanent modification. Spacer kit not required for Gen 2 models.
- 14" megaphone muffler
- Show-polished finish
- High flow flange kit
- 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
- 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
Recommended: Upgraded exhaust header bolts available here (a solution to the known issue of bent OEM hardware).