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Two Brothers M-6 Dual Slip-On Exhaust Kawasaki Ninja EX 250 1989-2007
  • Two Brothers M-6 Dual Slip-On Exhaust Kawasaki Ninja EX 250 1989-2007 - Aluminum
  • Two Brothers M-6 Dual Slip-On Exhaust Kawasaki Ninja EX 250 1989-2007
  • Two Brothers M-6 Dual Slip-On Exhaust Kawasaki Ninja EX 250 1989-2007

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Video Review

Two Brothers M-6 Dual Slip-On Exhaust Kawasaki Ninja EX 250 1989-2007 Videos

Two Brothers M-6 Dual Slip-On Exhaust Kawasaki Ninja EX 250

The Two Brothers M6 Slip-On Exhaust replaces your existing mid-pipe and exhaust canister. Two Brothers' mid-pipes are manufactured from .035" thin wall stainless steel. They then polish them to a satin finish. Two Brothers' uses only #304 stainless which will never rust. After a few heat cycles the steel turns a golden amber color which is the characteristic signature of high quality stainless steel. 

The entire line of TBR M Series canisters feature the same high level of quality construction and are designed to be fully serviceable in the event of damage, routine maintenance or the occasional repack. Two Brothers Racing's V.A.L.E. slip-on exhaust systems and flange-on systems feature CNC'ed aluminum inlets. These special designs provide for ease of maintenance as well as simplified construction, which is what a premium performance product is all about! The exhaust note produced by all of their Top Level™ 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.

V.A.L.E. = Variable Axis Locking Exhaust The V.A.L.E. system is TBR's revolutionary and patented method of attaching their muffler canisters to the exhaust tube without the use of springs or welding. Their V.A.L.E. systems allow the muffler assembly - exhaust tube and canister - to be positioned perfectly on the bike before all the mounting hardware is fully tightened. Once the canister and exhaust tubes are properly aligned, the V.A.L.E. assembly locks the muffler canister to the exhaust tube assuring a perfect, leak-free fit.

Unit Stock Exhaust Two Brothers Max Gain
Max Power HP 28.1 28.2 + .1
Weight lb 13.5 5.95 - 7.55

This Product Fits:
Ninja 250R 19892007
Product Style RevZilla Item # Manufacturer Product # Availability
Aluminum / Dual Mufflers / Slip-On 458606 005-1590406D In Stock: Ships within 24 hours


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Two Brothers M-6 Dual Slip-On Exhaust Kawasaki Ninja EX 250 1989-2007 4 5 4 4
Great sound This exhaust sounds great, is lighter than stock, and looks awesome. If you slip these exhausts on and leave it at that, ease of install is great. But if you slip these on and do nothing else to the bike, you will lose a lot of performance and likely be running lean. If you care more about performance than sound, be ready to invest in a jet kit. Rejetting the ex250 is time consuming and requires a lot of trial and error, be ready to spend a weekend doing it. Overall this exhaust was a great purchase and gave my old ninja some new life. May 18, 2015
The best purchase I have made! While some other people may have had some issues installing, I had almost none. I am 19 years old and have almost no experience with car or motorcycle repairs or modifications; and for me, installing these was a breeze! The steps are crystal clear, which there are literally less than ten steps, and it only took about an hour! As long as you are careful and follow the instructions, you should be able to install these with no issues. I gave 'Finish' a 4/5 stars because while the exhausts look good, they are definitely not amazingly sexy. But for some, you may not want flashy or odd looking exhausts. Still, they are a huge step above the stock exhausts. January 21, 2015
Not quite exact fit but good enough I recieved my slip ons to find out that the fight was sloopy. I ended up using oem gaskets and expanding the pipe a little to make a snug fit. Slight mods like that are usual for aftermarket parts. Overall still satisfied. January 11, 2015
noticable change in performance. Pros- 1. The new cans are about a quarter of the size of the stock ones. And half the weight. 2. looks amazing. 3. Sound amazing 4. The bike is definitely breathing much better. Notable change in the throttle. Cons- Install---the left pipe to start was about an inch to short so to compensate u had the play with the clamps on the slip on. On the clamps….ok um huge!!!! Took some serious muscle to get them tight enough to stop all exhaust leaks. Overall— They are awesome and definitely work. Great value for the price. And the install really isn’t bad for the mechanically inclined. If you’re not I recommend taking them somewhere to be installed.. December 27, 2011
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