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Two Brothers S1R Slip-On Exhaust Honda VFR800 2014-2015

Item: P285506

The S1R Exhaust combines more than a decade of racing experience and craftsmanship and represents the next generation of TBR Exhaust. Read More

Save $90.00 (15%)

This product is vehicle specific. Please to ensure fitment.

Learn More

Product Details

Two Brothers S1R Slip-On Exhaust Honda VFR800

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.


  • 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 95.06 99.99 + 4.93
Max Torque ft-lb 51.95 54.19 + 2.24
Weight lb 10 4 - 12
Sound Level db 86 98 + 8
Made in the USA
Product Style RevZilla Item # MFR. Product # Availability
Product Style Carbon Fiber / With OEM Saddlebags RevZilla Item #985365 MFR. Product #005-4030405-S1 AvailabilityIn Stock: Ships within 24 hours
Product Style Carbon Fiber / Without OEM Saddlebags RevZilla Item #985366 MFR. Product #005-4040405-S1 AvailabilityIn Stock: Ships within 24 hours

This product is vehicle specific. Please to ensure fitment.

This Product Fits
VFR800 Interceptor 2014, 2015
VFR800 Interceptor DLX ABS 2014, 2015
This item is also available for 52 different bikes. View All Models
Spyder F3 2015-2017
Spyder F3-S 2015-2017
Spyder F3-T 2016
Spyder RT 2014-2015
Spyder RT-S 2014-2015
Africa Twin CRF1000L 2016-2018
CB500F 2016-2018
CBR1000RR 2012-2016
CBR1000RR 2017-2018
CBR1000RR ABS 2012-2016
CBR1000RR ABS 2017-2018
CBR1000RR Repsol 2012-2015
CBR1000RR SP 2014-2016
CBR1000RR SP 2017-2018
CBR1000RR SP2 2017
CBR500R 2016-2018
CRF250L 2017
CRF250L Rally 2017
RC390 2015-2018
ER-6n 2009-2011
KLR650 2014-2018
Ninja 650R 2006-2011
Ninja ZX-10R 2011-2015
Ninja ZX-10R 2016-2018
Ninja ZX-6R ZX636 2013-2018
Versys 1000 2015-2018
Versys 650 2008-2014
Versys-X 300 2017-2018
Z900 2017-2018
DR650SE 1998-2015
GSX-R1000 2017-2018
GSX-R1000R 2017-2018
GSX-R600 2011-2018
GSX-R600 2006-2007
GSX-R750 2011-2018
GSX-R750 2006-2007
SV650 2017-2018
SV650 ABS 2017-2018
V-Strom 1000 2014-2018
V-Strom 1000XT 2018
Daytona 675 2013-2018
Daytona 675R 2013-2018
Street Triple 2013-2017
Street Triple R 2013-2017
FZ-10 2017
MT-10 2018
R1 2015-2018
R1 LE 2016
R1M 2015-2018
R1S 2016-2018
R3 2015-2018
R6 2006-2018


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Product Description
Part Numbers
Shipping & Returns

Reviews & Questions

4.0 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Bang For The Buck
4.0 / 5
3.0 / 5
4.0 / 5
Ease Of Install
3.7 / 5
Fit & Finish
4.0 / 5
4.0 / 5
Bang For The Buck
3 / 5
3 / 5
4 / 5
Ease Of Install
1 / 5
Fit & Finish
4 / 5
3 / 5
Attention to detail and customer service flaws
I purchased this for my 2014 Honda Interceptor, the version meant for the OEM bags.

It was a pain in the ass to install, though it should have been simple. I realized that they'd sent me the wrong midpipe, as the angles were wrong and the spring holders didn't align properly.

I contact Revzilla, who says to contact TwoBros, as they handle their own warranties. Not a problem.

I contact them, and after a couple discussions, they agree I have the wrong midpipe, so they're going to send out the correct one.

I then ask about getting a replacement hanger, as in my efforts to get it to fit it got a little tweaked, though it's still usable.

Keep in mind the bike is sitting in the garage with the exhaust off, and I've already wasted an hour trying to get it to work.

The rep says if I want to buy one I can go on their website. I go on the website, and I see it's only $17. SEVENTEEN DOLLARS. Basically an aluminum ring and a piece of rubber.

I send a follow up message asking if they can throw it in, as I've been inconvenienced, and the only reason mine is tweaked is because of their error in giving the wrong part.

His response is that they cannot do that, and the best they can offer is free shipping. Really? For a part that's $16.99 and weighs next to nothing?

I send off a letter saying that I buy a lot of exhausts, as U go through a new bike a year. I mention that I usually use Akrapovic, but I wanted to give them a try. I tell them it's hardly a recipe for customer loyalty, and if I need one after all, I'll just buy it myself.

I then mention that it hasn't been a very positive experience, and I do not plan to buy a TwoBros product again.

Keep in mind that I was very factual and was not rude. I received no response.

When I had got the bike to run (with the wrong midpipe), it indeed sounded much better, though I couldn't ride it yet to see if the power characteristics were any different.

The finish looked good, both on the midpipe and the muffler, though I'd have liked to see better instructions (even though it's generally not a super difficult process to install a slip-on.)

Personally, I'll not buy anymore of their products, as I feel their customer service is very poor, and I'm not sure how a product that specifically has two different versions, still gets sent out with the wrong midpipe.

If you have the confidence that they'll give you the correct product, I assume it will be a decent exhaust. But I'm not a fan.
August 15, 2017
11 months ago
Bang For The Buck
5 / 5
Ease Of Install
5 / 5
5 / 5
really wakes up the Interceptor!
Almost 6 more horses, 6lbs lighter for less than $600 = win, win, win. Stock can sounds like a sewing machine and 2bros can sounds great without being to loud, install was a piece of cake. Great product and made in US!
January 19, 2016
2014 Ducati Monster 1200 S
Bang For The Buck
4 / 5
Ease Of Install
5 / 5
4 / 5
Looks good, sounds better
Installation was easy, the entire process, removal and installation, took about 20 minutes. The instructions were good and even the anti seize compound was supplied.
The exhaust carbon fiber has a nice 3D look. The increase in sound level was quite noticeable being deeper and more authoritative.
As for a power increase, I live on a mountain and with the stock pipe, climbing the grade in 6th at 50 to 60 mph, the bike tended to shudder as if it was lugging...because it was. With the Two Brothers, that shudder is gone. Hit the throttle and it does shake until it revs up but at least at cruise it is better.
My only concern with the installation is where the Two Brothers pipe connects to the Honda pipe, there is a little lateral movement in the spring held connection. It is not a solid as the stock connection.
One last thing, as this bike has been and will go on more coast to coast rides, I prefer a quite system. I got the noise reduction insert (from Two Brothers) that slips in under the exhaust tip. The sound level is just about back to stock level (but with a better deeper sound) with no loss in power.
November 27, 2014
2014 Honda VFR800 Interceptor DLX ABS
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Browse 37 questions Browse 37 questions and 23 answers
Why did you choose this?
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Sounds amazing on the new VFR800
David C on Aug 28, 2016
Sounds amazing on the new VFR800
David C on Aug 28, 2016
53 Customer Reviews
53 4.5/5
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36 Questions & 22 Answers
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