- Installs to 2" Brock's Performance Alien Head, ShortMeg, 14" StreetMeg, Grom Alien Head 2 / ShortMeg 2 and Z125 Pro Alien Head 2 / ShortMeg 2
- Reduces noise by 10 dB at idle (varies depending on machine) while only losing 5-8% of peak power
- Easily removes or installs using a 5/16” (8mm) wrench
- Stainless steel insert designed to withstand extreme exhaust temperatures
- Stainless steel hardware for ultimate corrosion resistance
- Tapered mounting head for a sleek look and reduced weight
- Mounting head CNC machined from 6061-T6 billet aluminum
- Laser etched Brock's Performance logo
- Polished aluminum finish
- Click to view Noise Suppressor Installation Information
Neighbors give you the 'stink eye' when you cruise by? Buddies won't ride next to you any longer? We know you aren't getting any older (so we won't ask.) Let's face it… you purchased your Brock's Performance exhaust because it performs, looks and sounds BADASS, but there are some occasions when that sound needs to be kept in check, and you are mature enough now to give up a few ponies, if you can keep a reasonable tone. Well, Brock has listened to your requests, and he and his team have developed a good looking, quick and easy cure for your 'hum in the drum'. Our new Noise Suppressors have a fantastic ability to curb the noise, and they install in seconds (and your ass-dyno probably won't know the difference.) Your ears, however, will definitely notice a reduction in noise, without completely trashing the sound we know you love (and that was our goal.)
Test Bike: Kawasaki Ninja H2 (2016) w/ Slash Cut Full System
Dyno Chart (STD Scale) Click image to enlarge
Noise Suppressor Decibel Reduction Testing
Testing procedure performed according to SAE J2825
BMW S1000RR (2011):
Alien Head 2 Full System:
Idle: 109dB / 5000 RPM: 115dB
Alien Head 2 Full System: (with Noise Suppressor)
Idle: 102dB / 5000 RPM: 110dB
Honda Grom (2014):
Alien Head 2 Full System:
Idle: 98dB / 3000 RPM: 107dB
Alien Head 2 Full System: (with Noise Suppressor)
Idle: 87dB / 3000 RPM: 97dB
