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Single Alien Head Slip-On (3/4 System) R1/M (15-19)

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Single Alien Head Slip-On (3/4 System) R1/M (15-19)
  • 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
  • Click here to view logo plate color options
  • Click here to view exhaust installation instructions
  • Click here for PAIR block-off instructions

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.

Dyno Chart: Click image to enlarge

SAE Scale

Dyno Chart: Click image to enlarge

STD Scale

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

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