Yoshimura R&D of America, Inc.

YZF-R1/M/S 15-25 Race ALPHA T Stainless 3/4 Exhaust, w/ Stainless Muffler

YZF-R1/M/S 15-25 Race ALPHA T Stainless 3/4 Exhaust, w/ Stainless Muffler - Main image
$736.47 $1169 In stock

Category: Race Series Exhaust System

The Alpha T utilizes a tapered conical sleeve that produces a higher "GP" tone than its bigger brother Alpha, and is also lighter than the original Alpha. This muffler option includes durable Stainless Steel, featuring our exclusive Works Finish fitted with a carbon fiber end cap.

One look at an Alpha T system and you know it's something special!

  • 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
  • Configuration - Stainless Steel Mid-pipe and Tail-pipe
  • Weight - 10.3 lbs lighter than stock configuration

Sound Insert/Spark Arrester Options


Sound Level

Volume Insert Spark Arrestor Included
INS-20-K No
INS-27-K No
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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Natalie F. ★★★★★

The tapered conical sleeve gives it that crisp, higher-pitched GP tone without being obnoxiously loud on the street. It's noticeably lighter than the standard Alpha too, which I felt right away when lifting it out of the box. Install was straightforward and the stainless build looks like it'll hold

Sebastian ★★★★★

The moment I fired it up, that GP-style tone from the tapered sleeve hit exactly the note I was chasing—deeper and more aggressive than my old setup. The stainless build feels solid, and it’s noticeably easier to swing around than the stock muffler, which I didn’t expect. Weighing it against the ori

Carter S. ★★★★★

The tapered conical sleeve really changes the exhaust note—it has that sharp GP growl I was hoping for. Installation was straightforward, and the weight savings over stock are immediately noticeable.