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Yoshimura Kawasaki Z900 17-23 Street Alpha 2 Slip On Exhaust SS-SS-CF

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Introducing the latest in muffler style and power, our AT2 for the very distinctive Kawasaki Z900 Supernaked ride. Yoshimura answered the call with our new AT2 slip-on for this 948cc inline machine.

AT2 slip-on gets rid of excess weight from the stock muffler 5.0 lbs. vs. 8.9 lbs. for the stock muffler. The new AT2 makes the inline four cylinder engine perk up nicely and provides an increase in horsepower max 4.5% and a max torque of 4.2%. Features include a custom stainless heat shield, exclusive Works Finish, an aggressively styled matte finish carbon fiber end cap and heal guard complimented by a facet-formed formed tip. Add the tone of our AT2 and it puts the Z900 in another category. Street Series means that our new AT2 is 50-state emissions legal and mounts up in minutes!

The AT2 is proudly developed, designed and made in the USA.


Yoshimura Works Finish is a unique offering from Yoshimura R&D of America. The Works Finish is not a coating, but a media blast finish using Yosh's own special recipe of ingredients which results in a stainless steel exhaust that after it goes through a heat cycle on the motorcycle, takes on unique coloring that looks much like those works components our factory racers use. This Special System is available now in Race Series full system carbon/carbon and stainless/carbon muffler options.

Works Finish-Features and Benefits:

  • Contemporary satin/matte finish
  • Uniform heat coloration
  • Increased fatigue strength
  • Increased scratch and stain resistance
  • Resurfacing services available
  • No price increase from polish!
  • Style - Beautiful Shape resulting from Tri-Oval design heritage
  • Quality - Unrivaled fit and finish due to improved production tolerances
  • Performance - Optimized for maximum flow and improved ground clearance
  • Sound - Muffler volume and shape produces that magic tone Yoshimura is famous for
  • Service - Optimized for durability and ease of service

Yoshimura Street Series Exhaust Systems - All Yoshimura Street Series systems are Slip-on/Bolt-on applications that do not require tampering with the vehicle's emissions control system, yet still deliver that special spirit the world has come to expect from the legendary company known as Yoshimura. Street Series applications cover all of the iconic profiles that Yoshimura has become famous for. From the legendary tri-oval profiles to the refined carbon fiber R-77 mufflers, and even our R-55 angular masterpieces. Our Street Series exhaust offer street-legal options for almost everything on two wheels.

Yoshimura Alpha T Muffler Option Key:

Stainless Steel Sleeve with Carbon Fiber End-Cap

Titanium Sleeve with Carbon Fiber End-Cap

Yoshimura Alpha Muffler Options

Yoshimura Exhaust Description Guide Yoshimura Exhaust Description Guide

Yoshimura Street Series Exhaust Systems