Alien Head 2 Full System Black Cerakote® 12" Muffler Z125 Pro (17-23)

Alien Head 2 Full System Black Cerakote® 12" Muffler Z125 Pro (17-23)

(4 reviews) Write a Review
$729.00
SKU:
398568
Brand:
Quantity Available:
Please choose an option
Quantity Available:
5+
5.0000
$729.00
SKU:
398568
Brand:
Quantity Available:
Please choose an option
Quantity Available:
5+
5.0000
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  • 12" megaphone muffler
  • High-temp black (Cerakote®) ceramic coated finish
  • Maximized power gains on stock and modified engines
  • 2" outlet permanent baffle (glass wool/fiberglass) for long life, deep sound
  • Larger diameter outlet provides increased exhaust flow
  • Distinctive look/aggressive sound (2” optional noise reduction insert sold separately)
  • Pre-installed 18mm bung for wideband O2 sensor
    (12mm bung adapter and block-off plug included)
  • Provides maximum ground clearance
  • 55% weight savings vs. OEM full system
  • No fairing modifications required
  • Aerospace quality, ultra lightweight stainless construction
  • Note: Designed for use with OEM rearset, modification may be required for use with aftermarket rearset
  • Includes Brock’s lifetime direct support package at no additional charge
  • Includes access to Brock's map support program at no additional charge
  • Click here to view logo plate color options
  • Click here to view Installation Instructions

The Alien Head 2™ Exhaust System combines our legendary race-proven performance with the distinctive look and sound of our Alien Head 2™ Muffler. Our most popular exhaust system, Brock personally designed and hand-tuned the Alien Head 2™ Full Exhaust System to find the ideal balance of performance and attitude. Keeping our creative Z125 Pro owners in mind, this low-mount exhaust option was designed to tuck up tight along the engine to provide the most ground clearance available. Now you can stretch and lower your Z125 Pro without being restricted by your exhaust.

Dyno Charts: Click image to enlarge

SAE Scale


Z125 Pro Exhaust System Decibel Levels

Testing procedure performed according to SAE J2825

Alien Head 2™ Muffler:

Idle: 101dB / 3000 RPM: 107dB

Alien Head 2™ Muffler (with Noise Reduction Plug):

Idle: 93dB / 3000 RPM: 103dB


Z125 Pro Exhaust Weight Comparison:

OEM Exhaust System (one piece):

  • Full Exhaust: 8.55 lb.

Total = 8.55 lb.

Brock's Performance Alien Head 2™ Full System:

  • Muffler: 2.35 lb.
  • Head Pipe: 1.05 lb.
  • Hardware: 0.25 lb.
  • Flange: 0.20 lb.

Total = 3.85 lb.

Total Weight Savings = 4.70 lb. or 55% of stock weight

Reviews

  • 5
    Loud and fun

    Posted by Josh on Sep 23rd 2020

    The install was fairly straight-forward. I had no idea so it took me a bit of time but if you know what you're doing then I think you could have it installed in 15 minutes. It is so much louder than the stock pipe. It brings a smile to my face though and people like to stare. You can really sense the increase in power too, it seems easier to red-line in 1-2 and I think the bike revs lower at 60Kph than before so it should provide a higher top speed. Fast delivery to Australia so thanks for that. I have two Brock's exhausts now (the other on my Ninja H2) and I would highly recommend them.

  • 5
    great pipe! Loud!

    Posted by Ridinggravity on Aug 25th 2020

    vame fast and was exactly as described! Bought it for the liud sound amd 18mm wideband bung

  • 5
    Love it.

    Posted by Horacio Mejias on Jun 17th 2020

    Not only looks and sounds great; it is very well build, with good quality components. The most important thing is that I get a kick out how it makes my little Z sound like a big bike.

  • 5
    Alien head exhaust for Z125

    Posted by john miller on Aug 20th 2018

    It fit like a glove and it looks and sounds awesome