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Two Brothers M2 Slip-On Exhaust Yamaha R1 2009-2014
  • Two Brothers M2 Slip-On Exhaust Yamaha R1 2009-2014 - Aluminum
  • Two Brothers M2 Slip-On Exhaust Yamaha R1 2009-2014 - Titanium
  • Two Brothers M2 Slip-On Exhaust Yamaha R1 2009-2014 - Carbon Fiber
  • Two Brothers M2 Slip-On Exhaust Yamaha R1 2009-2014
  • Two Brothers M2 Slip-On Exhaust Yamaha R1 2009-2014
  • Two Brothers M2 Slip-On Exhaust Yamaha R1 2009-2014
  • Two Brothers M2 Slip-On Exhaust Yamaha R1 2009-2014

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Video Reviews (2)

Two Brothers M2 Slip-On Exhaust Yamaha R1 2009-2014 Videos

Two Brothers M-2 VALE Slip-On Exhaust Yamaha R1

Each Two Brothers Racing M2 Slip-On features the same high level of quality construction and is designed to be fully-serviceable in the event of damage, routine maintenance or the occasional repack. All TBR’s M series slip-on exhaust systems feature the innovative V.A.L.E. system with CNC'ed aluminum inlets. The V.A.L.E. system is TBR's revolutionary, patented method of attaching the muffler canisters to the mid-pipe without the use of springs or welding. This system allows the muffler assembly - exhaust mid-pipe and canister - to be positioned perfectly on the bike before all the mounting hardware is fully tightened. Once the canister and mid-pipe are properly aligned, the V.A.L.E. assembly locks the muffler canister to the mid-pipe assuring a perfect, leak-free connection.

Two Brothers' mid-pipes are manufactured from .035" thick stainless steel and feature a polished satin finish. They exclusively use 304 stainless steel for its high rust resistance. After a few heat cycles the 304 steel turns a golden amber color, which is the signature of high quality stainless steel. The exhaust note produced by all of Two Bros exhaust systems is best described as being deep and throaty, without suffering from the shrill whine normally associated with other manufacturer's straight through muffler canisters. But this bark would be pointless without a bad bite, so no matter which great sounding TBR’s exhaust you choose they will all reduce weight and deliver additional horsepower and torque.

As the government aka “The Man” pushes for greater emission restrictions, motorcycle manufacturers are forced to make their exhausts heavier and more restrictive. Two Brothers Racing has given the motorcycle community the means to stick it to the man with the M Series Slip-On Exhaust.


  • V.A.L.E. (Variable Axis Locking Exhaust)
  • Spiral-wound perforated core
  • Black Teflon coated magnesium end-cap
  • Rubber-lined exhaust clamp
  • 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 152.5 156.8 + 4.3
Max Torque ft-lb 78.1 78.7 + 0.6
Weight lb 11.5 8 - 3.5
Sound Level db 96 103 + 7
This Product Fits:
YZF-R1 20092014
YZF-R1 LE 2009, 2010, 2011, 2012
Product Style RevZilla Item # Manufacturer Product # Availability
Aluminum / Dual Mufflers / Slip-On 458492 005-2380406V In Stock: Ships within 24 hours
Titanium / Dual Mufflers / Slip-On 458494 005-2380408V/N005-2380408V Out of Stock
Carbon Fiber / Dual Mufflers / Slip-On 458493 005-2380407V In Stock: Ships within 24 hours


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Two Brothers M2 Slip-On Exhaust Yamaha R1 2009-2014 5 5 6 6
Holy throaty exhaust Batman This exhaust is AMAZING! easy installation and amazing sound! June 7, 2016
2012 Yamaha R1 -- Carbon Fiber Black Series This TBR Slip On Exhaust has an amazing low deep tone. Not sure if its because of the crossplane engine but It sounds incredible. I'm beyond impressed with this product. TBR has outdone on this one, not cutting any corners. Not only was there a noticeable increase of power but the bike now sounds unique. It turns heads to say the least. I've had a lot of compliments even from Harley Riders. Thanks TBR! April 1, 2015
2013 Yamaha R1 This exhaust sounds amazing! I get compliments every time I ride. Sounds like an absolute monster compared to stock. I am very happy with my purchase. Install was fairly simply and took me about two hours. I'm sure others could get it done faster. This exhaust looks perfect on my 13 matte grey R1. Buy it! October 20, 2014
Excellent Product! I recently installed this system, in carbon fiber, on my 2013 Yamaha R1, and left the cat in the bike, the system sounded amazing even with the stock cat, then I installed the Two Brothers Racing cat delete pipe, and re installed the exhaust, and I am extremely satisfied. I prefer to have a loud exhaust system on my bike, and, as important as it being loud is, it has to sound and look great, Two Brothers Racing definitely delivered on every aspect. Overall I am completely satisfied with the exhaust system, I have absolutely no complaints. (as a side note, if you prefer quieter exhaust, I would look into the db. reduction tips, offered by TBR) Also, REVZILLA.com shipped very expediently after I placed my order, I WILL DEFINITELY order through REVZILLA.com again June 1, 2014
Two Brothers M2 VALE Carbon Fiber Slip-On 2014 R1 HOLY LOUD!! Dont get me wrong ladies and gents, extra sound and performance is what we are after , but waking the dead!!!!! Installed this dual package in a little less than 2 hours. The instructions provided were easy to follow and descriptive enough for easy installation. One twist of the throttle and Helen Keller could hear me coming!!! I LOVE IT!!! I did purchase the P1x baffle inserts to maintain a friendly relationship with the neighbors. Together its exactly what I wanted!!! I recommend this product with 5 stars March 13, 2014
Love the aggressive sound. This exhaust was easy to install for someone who knows absolutely nothing installing or even performing an oil change on motorcycles. The aggressive sound is amazing. However it is very loud, and if you live in a small neighborhood I would highly recommend getting the Two Brothers Racing P1-X PowerTip Sound Suppressor with your purchase. It will bring down the sound enough to not tick off the neighbors but keep the aggressive growl. If you're looking for an exhaust definitely go with Two brothers. March 5, 2014
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