Skip to Main Content
Free Shipping
over $39.99

Orders $39.99 or more ship free within the contiguous U.S.

Free Shipping Policy
No-Hassle
Returns

Doesn't fit? Don't love it?

Return any unused item within 30 days for a full refund.

No-Hassle Returns

  1. Obtain an RA number
  2. Package your product
  3. Send it back to us!
Return Policy
Lowest Price,
Guaranteed

Found it for less?

RevZilla will match any advertised price on new merchandise available through another authorized U.S. dealer.

Submit a Price Match

Elite Service Rating

Our goal is to provide the best possible shopping experience to every enthusiast who visits RevZilla.

See what our customers are saying about us:

Customer Reviews

ZillaCash Rewards Program

Earn $5 for every qualified $100 you spend. You'll also hear about special offers and events! How it works:

1

Sign in or create an account to earn ZillaCash on your next purchase with us.

2

Earn $5 for every $100 you spend on eligible items and brands.

3

Redeem your ZillaCash Rewards on a future order with us!

See our customer service page for more details.

Free 2-day delivery on all qualified orders. Orders $39.99 or over will ship for Free within the continental United States.

Learn More

Guaranteed Holiday Delivery until 12/23 at 2:59 PM ET, click below for details.

More Info

RevZilla will match any advertised price on new merchandise available through another authorized U.S. dealer.

Submit a Price Match

Gift with Confidence! Holiday purchases are eligible to return through January 31st.

Learn More
Sale
Two Brothers

Two Brothers S1R Black Series Exhaust System

Item: P325422

The S1R is the next generation of high-performance exhaust that combines race-derived tapered headers and a stealthy Black Series S1R muffler. Read More

$458.98 $968.98
$509.98 $999.98
Save up to Save $31.00 10%
Price depends on fitment. Select your bike to continue.
Rebate Available! View Details

Product Details

This product is legal in California only for racing vehicles which may never be used, registered or licensed for use upon a highway.

Two Brothers S1R Black Series Exhaust System

The Two Brothers S1R Black Series Exhaust takes the state-of-the-art S1R design to the dark side with black billet aluminum inlets, stealthy TBR badges and Two Brother's signature carbon fiber weave. The S1R produces that deep and throaty sound that TBR is known for thanks to their spiral-wound perforated core technology. The rubber lined natural finished aluminum muffler clamps feature an aggressive angular design and cutouts to reduce weight.

All exhaust pipes of the S1R Black Series Exhaust Systems start life as .035" thin wall #304 stainless steel tubing. #304 stainless steel, a lightweight austenitic chromium-nickel stainless steel which has low thermal conductivity properties and is corrosion resistant, even in the harshest environments. TBR then took this versatile alloy and infused it with their stepped exhaust technology. The stepped header system forces the exhaust gases to travel through incrementally larger diameter exhaust pipes on its way to the muffler. This design creates a vacuum effect that forces hot exhaust gases out, allowing your engine breath better while simultaneously increasing horsepower, torque and throttle response.

Features:

  • Aerospace high-temp carbon fiber
  • Stamped spring-fit inlet
  • Optional P1 and PX1 sound inserts available (sold separately)
  • Optional anodized bolts kits available (sold separately)
  • Made in USA

Note: Muffler image for reference only. Actual S1R Black Series muffler will vary slightly depending on your bike's make and model.

Made in the USA
This Product Fits
Honda
CBR500R 2016-2020
Kawasaki
KLX250 2018
Ninja 650 2017-2019
Ninja 650 ABS 2017-2020
Ninja ZX-6R 2009-2012
Ninja ZX-6R ZX636 2013-2019
Ninja ZX-6R ZX636 ABS 2019-2020
Versys 650 2015-2020
Z650 2017-2019
Z650 ABS 2019-2020
Yamaha
FJ-09 2015-2017
FZ-07 2015-2017
FZ-09 2014-2017
MT-07 2018-2020
MT-09 2018-2020
R3 2015-2020
R6 2008-2020
Tracer 900 2019
Tracer 900 GT 2019-2020
XSR700 2018-2020
XSR900 2016-2020
Product Description
Fitment
14 Customer Reviews
14 4.5/5
18 Questions & 15 Answers

Reviews & Questions

Leave a product review for a chance to win one of our monthly $100 giveaways.
Ask or answer a question to win one of our monthly $100 giveaways.