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Two Brothers M2 Slip-On Exhaust Kawasaki Ninja 250R 2008-2013
  • Two Brothers M2 Slip-On Exhaust Kawasaki Ninja 250R 2008-2013 - Aluminum
  • Two Brothers M2 Slip-On Exhaust Kawasaki Ninja 250R 2008-2013 - Titanium
  • Two Brothers M2 Slip-On Exhaust Kawasaki Ninja 250R 2008-2013 - Carbon Fiber
  • Two Brothers M2 Slip-On Exhaust Kawasaki Ninja 250R 2008-2013
  • Two Brothers M2 Slip-On Exhaust Kawasaki Ninja 250R 2008-2013

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$434.98 - $524.98
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Video Reviews (2)

Two Brothers M2 Slip-On Exhaust Kawasaki Ninja 250R 2008-2013 Videos

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 M-2 VALE Slip-On Exhaust Kawasaki Ninja 250R

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 27.3 29.2 + 1.9
Max Torque ft-lb 14 14.9 + 0.9
Weight lb 10.5 3.5 - 7

This Product Fits:
Ninja 250R 20082013
Product Style RevZilla Item # Manufacturer Product # Availability
Aluminum / Slip-On 458574 005-2080406V In Stock: Ships within 24 hours
Titanium / Slip-On 458572 005-2080408V Only 1 Left: Ships within 24 hours
Carbon Fiber / Slip-On 458573 005-2080407V In Stock: Ships within 24 hours


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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

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Two Brothers M2 Slip-On Exhaust Kawasaki Ninja 250R 2008-2013 4.9 5 8 8
Great Exhaust for a 250r if you want to be heard This exhaust is basically a straight pipe from the headers. The install was relatively straight forward minus a few kinks in understanding how the connects for the pipe to the exhaust work. Sound is great! Makes the 250r sound like a 650r anywhere below the 7k rpm range. Outside of that it just sounds like a very loud buzzing insect. Also the exhaust is significantly lighter than the original. November 24, 2014
Really good exhaust The only reason why it got anything lower than a full 5/5 is because there is a solid bushing that comes with the exhaust that is supposed replace the stock bushing doesn't fit properly. The screw that is supposed to hold it on to the body doesn't fit through the solid bushing so I just Jimmy rigged myself one out of the old bushings and it fit. I just threw away that solid bushing away. It was useless. August 11, 2014
Worth every penny! I installed this slip on my 2009 ninja 250. It looks awesome, sounds amazing and without a doubt provides a solid performance boost. Would recommend this product to anyone. July 9, 2014
Great product! I bought the slip-on for my girlfriend's Ninja 250. We didn't like that the stock exhaust was so quiet so we checked out a few options. We took a look at the Yoshimura, Akrapovic, and finally found Two Brothers. Fortunately, we had friends that had each of these exhaust slip ons and we loved Two Brothers the most. As others have stated, it is VERY loud, but we love the deep guttural sound to it. The item came with installation instructions. Installing the slip-on was more difficult than taking the stock exhaust off, lol. We are very happy with this item and would recommend it. I also wanted to add that we got the item in two days!! Ordered it on Monday and it came in the mail on Wednesday. Love RevZilla. Can't wait to buy the next item! February 19, 2014
Looks and sounds great on my Ninja 250 I was surprised at the price on RevZilla, its roughly $100 cheaper than going straight through TwoBrother's website and is less expensive than other sites as well. It makes my bike look nice, sounds wonderful and I feel more safer with my bike actually being a louder than with the stock. Also a noticeable boost in power. I highly recommend this for the price. It's not difficult to install either. January 16, 2014
2010 Ninja 250R - Two Brothers M-2 VALE Slip-On Exhaust First time I have ever used RevZilla for parts and accessories. I placed my order on 4/10/13 and I had it on 4/12/13. I have already installed the TBR exhaust this morning. This thing sounds awesome. It has a deep rumble when it starts and you can definitely hear it now. It was easy to install...took me longer to get the stock off then to get this one on. It looks great and sounds great. Glad I bought this one!!!!! April 13, 2013
Great sound and performance This thing is amazing, sound is quite loud though, I have to watch my rpm when I enter our neighborhood since it tends to make other cars' alarms activate. Anyways it's worth it, performance feels better even at low rpm, also the acceleration is much smoother February 27, 2012
Great muffler for a 250R Wow what a beautiful sound and difference. I couldn't have picked a better product for my 250R ninja Kawasaki. I can really be noticed when I'm on the road. Let's people know I'm near them. Your also getting about 5% more horse power. You feel it when u accelerate. Good job. October 11, 2011
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