Alien Head 2 Full System 14" Muffler S1000RR (15-19) and S1000R (17-20)

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  • S1000RR (17-19) model years require installation of the OEM right-side rearset and muffler mounting hardware from the (15-16) model year S1000RR
  • S1000R (17-20) model years require installation of the OEM right-side rearset and muffler mounting hardware from the (14-16) model year S1000R
  • 14" megaphone muffler
  • Show-polished finish
  • 2.25" outlet permanent baffle
  • Larger diameter outlet provides increased exhaust flow
  • Maximized power gains on stock and modified engines
  • Distinctive look and aggressive sound
    (optional noise reduction insert sold separately)
  • No fairing modifications required
  • Aerospace quality, ultra lightweight stainless construction
  • 58% weight savings vs OEM exhaust system
  • Two 12mm O2 bungs pre-installed on headers and one 18mm bung for wideband O2 sensor (block-off plugs included)
  • Includes (emissions/PAIR) block off cap for decel-pop reduction
  • 3oz. tube of Permatex Ultra Copper® supplied with purchase
  • 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 for exhaust installation instructions
  • Click here for PAIR block-off instructions

The Follow-Up To Our Best-Selling Exhaust System

The Alien Head 2™ offers a full through 2.25” diameter secondary section for increased exhaust flow and builds upon the legendary, race-proven performance of the original Alien Head™, while adding a distinctive look and deeper exhaust tone. This system is a must for the sportbike owner who’s never quite satisfied with factory power.

Manufactured to stringent specifications, Brock personally designed and hand-tuned the Alien Head 2™ full exhaust system to find the ideal balance of performance and attitude for the stock to highly modified sportbike. The Alien Head 2™ exhaust system stands as the benchmark of cutting edge power, design, and style.

Dyno Chart: Click image to enlarge

SAE Scale

Dyno Chart: Click image to enlarge

STD Scale

S1000RR Exhaust System Decibel Levels

Testing procedure performed according to SAE J2825

Alien Head 2 Muffler (with Noise Reduction Plug):

Idle: 104dB / 5000 RPM: 111dB

Alien Head 2 Muffler:

Idle: 107dB / 5000 RPM: 114dB

S1000RR Exhaust Weight Comparison

OEM Exhaust System:

  • Muffler: 8.8 lb.
  • Front Section: 13.95 lb.

Total = 22.75 lb.

Alien Head 2™ Full System:

  • Muffler: 3.20 lb.
  • Front Section: 6.20 lb.
  • Hardware: 0.20 lb.

Total = 9.60 lb.

Total Weight Savings = 13.15 lb. or 58% of OEM weight

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