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Two Brothers S1R Exhaust System Kawasaki Ninja 650 / Z650 2017-2018

Item: P368123

The S1R Exhaust System combines race derived stainless steel tapered headers with the next generation S1R muffler. Read More

$679.98
$799.98
Save $120.00 (15%)

This product is vehicle specific. Please to ensure fitment.

Learn More

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 Exhaust System Kawasaki Ninja 650 / Z650

The Two Brothers S1R Exhaust System represents a step into the future for TBR. The S1R exhaust features a carbon fiber sleeve highlighted by a natural aluminum outlet and a stamped, spring-mounted inlet for extra durability. Like most TBR mufflers, the end cap of the S1R exhaust is constructed of magnesium and features a non-stick teflon coating. However, that is where the similarities end.

The aggressive design of the end cap is reminiscent of  modern jet engines, making this exhaust move at mach 1 speeds while standing still. The carbon fiber sleeve of the S1R exhaust system is made of a 33 million modulus rated carbon fiber that is impregnated with high temperature resin, under very tight tolerances. Thirty-three million modulus rated carbon fiber can be considered the Goldilocks of carbon fiber, it has strong structural properties without being overly stiff and brittle, making it just right.

The sound produced by the S1R is deep and throaty thanks to its spiral-wound perforated core technology. The rubber-lined, natural finish aluminum muffler clamps feature an aggressive angular design and cutouts to reduce weight. The mid-pipe and headers are constructed from .035” thick #304 stainless steel. After a few heat cycles the #304 steel turns a golden amber color, the hallmark of quality stainless. Of course an exhaust can't be all show and no go, that is why the S1R exhaust is track-tested and dyno-tuned to offer the best performance package possible.

Features:

  • Rubber-lined, naturally finished aluminum muffler clamps
  • 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 muffler will vary slightly depending on your bike's make and model.

Made in the USA
Product Style RevZilla Item # MFR. Product # Availability
Product Style Carbon Fiber RevZilla Item #1198040 MFR. Product #005-4630105-S1 AvailabilityIn Stock: Ships within 24 hours

This product is vehicle specific. Please to ensure fitment.

This Product Fits
Kawasaki
Ninja 650 2017, 2018
Ninja 650 ABS 2017, 2018
Z650 2017, 2018
This item is also available for 14 different bikes. View All Models
Honda
CBR500R 2016-2018
Grom MSX125 2014-2015
Kawasaki
Ninja ZX-6R 2009-2012
Ninja ZX-6R ZX636 2013-2018
Versys 650 2015-2018
Yamaha
FJ-09 2015-2017
FZ-07 2015-2017
FZ-09 2014-2017
MT-07 2018
MT-09 2018
R3 2015-2018
R6 2008-2018
XSR700 2018
XSR900 2016-2018

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Reviews & Questions

4.5 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
1
1
0
0
0
Bang For The Buck
5.0 / 5
Features
4.0 / 5
Style
5.0 / 5
Ease Of Install
4.0 / 5
Fit & Finish
3.0 / 5
Durability
5.0 / 5
Bang For The Buck
5 / 5
Features
5 / 5
Style
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Durability
5 / 5
Awesome Exhaust
Bought this exhaust without really knowing anything about it & the expectations blew me away. Made my silent bike because a nice loud machine. Definitely recommend
June 22, 2018
Purchased
2 months ago
Bang For The Buck
5 / 5
Features
3 / 5
Style
5 / 5
Ease Of Install
3 / 5
Fit & Finish
1 / 5
Durability
5 / 5
2017 Ninja 650
For starters this exhaust looks great and the sound is awesome. VERY LOUD without power tip. No video does this exhaust any kind of justice what so ever. The install took about 4 hours but that was including two trips to the store for additional tools. The removal of the stock system including taking off the lower cowl took about an hour and the rest was the install.The majority of the time was trying to figure out issues with the fitment of the mid pipe and muffler. After it was all installed it surpassed all expectations for the sound and look. There is one and only one issue with this exhaust and that is the left header pipe does not have enough room between it and the lower cowl. The heat tape supplied did not hold up to the heat and I ended up having to buy high temp heat tape to put in between the header pipe and cowl after it burnt through the supplied tape. I'm not sure if that is a defect in the headers or not. I would highly recommend getting a fuel programmer to go with this exhaust. I have the PCV and before installing the exhaust it had the stock map on it and could tell it was too lean just starting it up. After the map for this exhaust was put on the PCV it was much better. Between this exhaust and the PCV it made the Ninja 650 feel and sound like an entirely different bike. When I was looking for an exhaust I could not find as much info/reviews on the S1R for the 2017 Ninja 650 as I did for Yoshi Alpha which made this decision difficult. However I am glad I went with this exhaust. Overall the S1R is an awesome sounding and awesome looking exhaust. It would easily be 5 out of 5 stars if there wasn't a clearance issue between the header pipe and cowl.
August 6, 2018
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 18 questions Browse 18 questions and 8 answers
will this fit a 2017 ninja 650?
A shopper on Aug 31, 2017
BEST ANSWER: Yes but there is a clearance issue between the left header pipe and the lower cowl
Is this California legal?
A shopper on Jun 14, 2018
23 Customer Reviews
23 5/5
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18 Questions & 8 Answers
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