Yoshimura R&D of America, Inc.

450SS 23-26 / 450NK 24-26 AT2 Stainless Slip-On Exhaust, w/ Stainless Muffler

450SS 23-26 / 450NK 24-26 AT2 Stainless Slip-On Exhaust, w/ Stainless Muffler - Main image
$389.79 $639 In stock

Category: Street Series Exhaust System

The CFMOTO brand has been making a mark in powersports, most recently with the incredibly priced 450SS and 450NK. After investigating we found these models have a lot of value to provide the enthusiast, so we jumped in!

The 450 SS has a fit and finish that is hard to beat for the price. After ride testing this fun machine/potential track day bike we set out to add our own value to these bikes.

Our AT2 Street Series slip-on with carbon fiber heel guard is designed to optimize power and man, did it! The 449cc parallel twin, literally woke up! This bike now sounds 200cc bigger than it actually is! The sound emitting from the 450 SS almost sounds like a (dare we say it?) Ducati! Our dyno verifies what we felt in seat time testing - this feels like a different bike! Gaining 6.3% max hp and a whopping 10% max gain in torque! All this at almost half the weight of the stock muffler.

The CFMOTO 450 SS/NK just got a whole lot more fun!

Yoshimura's AT2 is proudly designed, developed and manufactured in Chino, California.

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Customer Reviews (5.0 / 5 · 5 reviews)

Sebastian ★★★★★

Bolted it on this weekend and the stainless construction feels rock solid, no cheap thin metal here. The slip-on design made the swap a breeze, maybe 20 minutes with basic tools, and the muffler's finish has held up through a few rain rides already.

Victoria Y. ★★★★★

The deep tone of this stainless muffler is exactly what the 450SS needed—it sounds aggressive without being obnoxious on my daily commute. The welds look clean and it bolted right up to the stock hanger.

Penelope ★★★★★

Installation was straightforward, and I love how the slip-on gives the bike a deeper, cleaner tone without being obnoxiously loud. The stainless finish complements the stock lines perfectly, and the weight savings are noticeable when riding.