- 12" megaphone muffler
- High-temp black ceramic coated finish
- Maximized power gains on stock and modified engines
- 2" outlet permanent baffle (glass wool/fiberglass) for long life, deep sound
- Larger diameter outlet provides increased exhaust flow
- Distinctive look/aggressive sound
(2” optional noise reduction insert sold separately) - Pre-installed 18mm bung for wideband O2 sensor
- Provides maximum ground clearance
- Over 60% in weight savings
- No fairing modifications required
- Aerospace quality, ultra lightweight stainless construction
- Note: Designed for use with OEM rearset, modification may be required for use with aftermarket rearset
- Includes Brock’s lifetime direct support package at no additional charge
- Includes access to Brock's 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 Airbox Modification Instructions
IN STOCK
Alien Head 2 Full System Black Cerakote® 12" Muffler Grom/MSX125 (14-15)

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937.912.0054 Live ChatIN STOCK
Alien Head 2 Full System Black Cerakote® 12" Muffler Grom/MSX125 (14-15)
$779.00
Product Videos
Reviews
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AMAZING SOUND
The alien head 2 sounds and looks amazing on the first gen grom but is loud enough to be ticketable if you have loud exhaust fines in your area
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Right on Targe
Looks, sound, and performance....is there any need to say more ?? This system delivered exactly what I wanted in an exhaust for my GROM. Clean looks, a sound much more than you would expect from a 125cc single, and the increased performance that put usable power right where it needs to be. As always, customer service and support is unparalleled with Brock's Performance !!