- 14" megaphone muffler
- Show-polished finish
- 2.25" outlet permanent baffle
- Great look and aggressive sound
(optional noise reduction insert sold separately) - No modifications required
- Aerospace quality, ultra lightweight stainless construction
- Eliminates the OEM catalytic convertor
- 74% weight savings vs OEM muffler/catalytic converter
- Two 12mm O2 bungs and one 18mm O2 bung pre-installed on collector (block-off plugs included
- An easy and affordable way to customize your bike
- Includes muffler, collector and necessary hardware
- Includes PAIR block-off cap for decel-pop reduction
- Designed to work with OEM front section only
- Brock’s Performance slip-on mufflers will transform any stock exhaust system into a great sounding, customized accessory. Slip-ons are also very affordable, making them a very attractive option. Logo plates are available in several different colors to give your bike a custom look and lets not forget, at Brock's Performance, all pipes come free with industry-leading technical support.
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YZF-R1/M Exhaust System Decibel Levels
Testing procedure performed according to SAE J2825
Alien Head 2 Muffler (with Noise Reduction Plug):
Idle: 104dB / 5000 RPM: 110dB
Alien Head 2 Muffler:
Idle: 108dB / 5000 RPM: 113dB
YZF-R1/M Exhaust Weight Comparison
OEM Exhaust System:
- Muffler: 3.0 lb.
- Catalytic Converter: 13.25 lb.
- Heat Shields: 0.80 lb.
- Hardware: 1.15 lb.
Total = 18.20 lb.
Alien Head 2™ Slip-On Exhaust (3/4 System):
- Muffler: 3.0 lb.
- Collector: 1.70 lb.
- Hardware: 0.10 lb.
Total = 4.80 lb.
Total Weight Savings = 13.40 lb. or 74% of OEM weight
3 YEAR WARRANTY