Alien Head 2 Full System Black 14" Muffler ZX-14R (12-20)

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The Follow-Up To Our Best-Selling Exhaust System

The Alien Head 2™ offers: more ground clearance, more room for the added fan, bigger flange kit and a deeper sound than the original Alien Head™ for the Gen 1 ZX-14's. We also moved the power curve up, since the ZX-14R has a stroker engine and doesn't need additional low end power.

The Alien Head 2™ exhaust system combines our legendary race-proven performance with the distinctive look and sound of the original Alien Head™ muffler, which has become a favorite with custom builders to showcase more of today’s big tire/custom swingarms. 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 all new ZX-14R.

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

ZX-14R Exhaust Weight Comparison

OEM Exhaust System:

  • Front Section: 8.8 lbs.
  • Right Muffler: 16.25 lbs.
  • Left Muffler: 16.00 lbs

Total = 41.05 lbs.

Brock's Performance Alien Head 2™ Full System:

  • Front Section: 5.45 lbs.
  • Flanges: 1.05 lbs.
  • Muffler: 3.1 lbs.

Total = 9.60 lbs.

Total Weight Savings = 31.45 lbs. or 76% of stock weight

3 Reviews Hide Reviews Show Reviews

  • 5

    Posted by Pedro on Jun 10th 2020

    I can finally say, I have a Brock's on my Bike. Its the best looking Exhaust I have ever seen. The sound is solid awesomeness. The Look on my ZX14R SE is another level.

  • 5

    Posted by Jon on Jun 9th 2018

    Awsome exhaust. Looks great, sounds great, lightweight. Smooth, easy to clean finish..

  • 5
    Brock's Performance left out a few details.

    Posted by MBC on May 21st 2018

    Let me start by saying the exhaust sounds amazing. The install was not difficult but is not for those not mechanically inclined. The exhaust has an O2 sensor port on the left side. Stock exhaust has an O2 port on the right side. The problem.......the stock wire is not long enough to reach to the left side of the exhaust. You are left with the option of removing the O2 sensor and the check engine light coming on. You must have the ecu flashed and you have to reset the check engine light. This should have been included in the instructions. Other than that, I very pleased. Alien Head 2 weighs approx 8lbs compared to nearly 100lbs with the stock exhaust.