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Two Brothers S1R Exhaust System Yamaha FZ-09 / MT-09 2014-2018

Item: P261929

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

$1,011.48 - $1,110.48
$1,189.98
Save $178.50 (15%)

This product is vehicle specific. Please to ensure fitment.

Learn More

Product Details

Two Brothers S1R Exhaust System Yamaha FZ-09

The Two Brothers S1R Slip-On Exhaust represents a step into the future for TBR. The S1R exhaust features a carbon fiber sleeve highlighted by a natural aluminum outlet and stamped, spring-mounted inlet for the ultimate 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 the modern jet engine 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 finished aluminum muffler clamps feature an aggressive angular design and cutouts to reduce weight. The mid-pipe is 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.

Features:

  • Fully-serviceable in the event of damage, routine maintenance or the occasional repack
  • 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
Unit Stock Exhaust Two Brothers Max Gain
Max Power HP 107.65 114.55 + 6.9
Max Torque ft-lb 61.19 63.94 + 2.75
Weight lb 18 8 - 10
Sound Level db 91.5 99 + 7.5
Made in the USA

Resources:

Product Style RevZilla Item # MFR. Product # Availability
Product Style Carbon Fiber / Full System RevZilla Item #938460 MFR. Product #005-3790105-S1 AvailabilityIn Stock: Ships within 24 hours

This product is vehicle specific. Please to ensure fitment.

Yamaha
FZ-09 2014, 2015, 2016, 2017
MT-09 2018
This item is also available for 13 different models
Honda
CBR500R 2016-2017
Grom MSX125 2014-2015
Kawasaki
Ninja 650 2017-2018
Ninja 650 ABS 2017-2018
Ninja ZX-6R 2009-2018
Ninja ZX-6R ZX636 2013-2018
Versys 650 2015-2018
Z650 2017-2018
Yamaha
FJ-09 2015-2017
FZ-07 2015-2017
R3 2015-2017
R6 2008-2017
XSR900 2016-2017

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Product Description
The S1R Exhaust System combines race derived stainless steel tapered headers with the next generation S1R muffler. Read More
Part Numbers
Tap To View Part Numbers
Fitment
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Shipping & Returns
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Reviews & Questions

5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
2
0
0
0
0
Bang For The Buck
4.0 / 5
Ease Of Install
5.0 / 5
Durability
5.0 / 5
Bang For The Buck
4 / 5
Ease Of Install
5 / 5
Durability
5 / 5
Looks good
It was really easy to install. The only tough part is that you really need to have a tuner installed and have it mapped on a dyno. If not the bike will run very lean. I have the Bazzaz and Two Bros. Dynos out at 68hp /110ft lbs. The sound is incredible. A little loud on long rides but nothing a good set of plugs won't solve. I am very happy with this setup!
April 11, 2015
Ride:
2014 Yamaha FZ-09
Bang For The Buck
4 / 5
Ease Of Install
5 / 5
Durability
5 / 5
LOUD
The exhaust is awesome, point blank. I think it sounds better than the Akropvic (Had a guy with a FJ start his and it wasn't what I was looking for) The SR1 has a deeper sound to it but its still freaking loud. Way better than I thought it was going to be. I also installed a Power Commander with it since I modded the air box and changed the filter (Highly recommend). I don't have a dyno accessible so I cant give you numbers. All I will say is buy this exhaust and you wont be disappointed.
April 22, 2016
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 17 questions Browse 17 questions and 9 answers
Why did you choose this?
RevZilla Store
Great sound - great performance - looks awesome on the bike
Kevin N on Aug 15, 2017
Had good luck with Two Bros in past. Love the sound, best sale price on the full system compared to other available systems
Mike L on Jan 23, 2014
Great sound - great performance - looks awesome on the bike
Kevin N on Aug 15, 2017
Good reviews.
James W on Aug 31, 2014
Had good luck with Two Bros in past. Love the sound, best sale price on the full system compared to other available systems
Mike L on Jan 23, 2014
Good reviews.
James W on Aug 31, 2014
Will I need a tuner to recalibrate the oil to gas ratio on my 16 fz-09 with this exhaust?
A shopper on May 8, 2017
18 Customer Reviews
18 5/5
Read All Reviews
16 Questions & 6 Answers
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