Two Brothers M-7 Complete Exhaust

$519.99 - $649.99
$439.99 - $554.99
4.90 out of 5 stars
Fitment Expert:
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Two Brothers M-7 Complete Exhaust
Two Brothers M-7 Complete Exhaust
  • Description
  • Reviews (7)
  • Q&A (5)
  • Fitment
  • Two Brothers M series exhaust canisters feature the highest level of quality construction and are designed to be fully serviceable in the event of damage (replacement parts are available).
  • The exhaust note produced by all Two Brothers 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.
  • All of the canisters perform and sound the same, they are simply different shapes.
  • They all incorporate Two Brothers exclusive technologies and premium construction materials.
  • The shape and orientation is normally determined by Two Brothers R&D department, based on a performance criteria check list.
  • All aluminum systems include U.S. Forest Service approved spark arrestor.
4.9 out of 5 stars (7)
4.9 out of 5 stars
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Overall 4 out of 5 stars
Verified Purchaser
Sounds pretty mean

i like the sound of this exhaust on my 07 crf450. The carbon fiber gives the can a clean look and is easy to clean as well. Coupled with a power filter from twinair and rejetted the bike has absolutley came alive.

Overall 5 out of 5 stars
Great Product

great product easy to install and the performance increase is crazy! well worth it

Overall 5 out of 5 stars
Location: Billings, MT, USA
2008 YFZ450

Installed two bros m-7 complete system on my 2008 YFZ450. Also did a boyesen quickshot 3 accelerator pump cover and the "cam mod". Woke my quad up big time, sounds great, It is loud, So the only thing I can say is if you do not like to hear your pipe, don't get this one.

Overall 5 out of 5 stars
Verified Purchaser
Location: humboldt, ca
Killa exhaust

Awesome full exhaust! fatten up your main jet and it pulls super hard! throw a dr. d flex jet for fine tuneing and it turns into a monster! great full exhaust a++

Overall 5 out of 5 stars
Location: South Prairie, Wa.
Fantastic product.

We run this exhaust on our yz250f's. Great power increase over stock plus they sound and look really good.

Overall 5 out of 5 stars
Top 1000 Contributor
Location: Andrews, Texas
Best sounding exhaust for the bike

good quality exhaust and you can feel the power increase

Overall 5 out of 5 stars
Ease of Installation
Location: Draper, UT
Big power increase

I just replaced my jardine rt99 exhaust with TBR M7 and i'm very impressed! Went on quick and easy, just wish i didn't have to take off the end cap to take out the spark arrestor. This pipe gives a lot of power! I love it, and strongly recommend it!

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Total Questions (5)
Questions with answers:
Questions without answers:
Braapinsence91 Location: Florida, USA
ZookMania Location: Louisville, KY
2008Yz250F Location: Wainwright, AB, Canada
1-5 of 5
Braapinsence91 Over 5 months ago Location: Florida, USA
Couple questions?
First will I have to get an EFI tuner with this pipe? (2014 yfz450r) and when I get the exaust will it hurt the bike to run it without a tuner in the mean time? Second what is the size of the header compared to my stock header, just wondering if it's worth getting the fully system as my stock header is already a fatty from factory. And finally the picture shows the aluminum finish with no other options, it will ship with the carbon fiber finish right? Or is it out of stock? Thank you in advance
Top 1 Contributor
Over 5 months ago
Many of the items we stock are available for a wide variety of applications. A single stock photo may be used to represent many items on our website. If you have profiled your ride, you can rest assured that the part ordered will fit your application. Normally when installing a slip-on only minor changes to the air/fuel ratio are needed, if any at all. If your bike is currently running properly, likely you will not have to make any changes after installing this slip-on. I would recommend installing the exhaust and riding the machine to see how it is running then decide if you need an purchase an aftermarket EFI tuner .If you have any questions please contact one of our sales professionals for assistance.
Sledneck2013 Over 7 months ago Location: Plainview, NE, USA
Two Brothers M-7 Complete Exhaust?
Does this come with just a slip on or the full exhaust from the manifold back?
Top 1 Contributor
Over 7 months ago
The Two Brothers M-7 Complete Exhaust is a complete. It includes the header and slip on.
Tlang 1 year 1 month ago
Will I have to make any major adjustments to my carburetor with this pipe?
MotoSport Staff Expert Top 1 Contributor
1 year 1 month ago
Typically after installing a full system aftermarket exhaust, you will need to re-jet your carburetor. There is not a specific setting I could give you for jetting your bike. It would really depend on your location (altitude/temperature) and how your bike is running with the current jetting. Jetting can be very tricky, there isn't one setting that will work everywhere with every bike. After installation I would recommend taking your bike to a local motorcycle dealership??s service department to have your bike properly jetted.
ZookMania 2 years 2 months ago Location: Louisville, KY
For 2010 Rmz 250 Is it very durable? Where do you see gains...Bot? Mid? Top?
MotoSport Staff
2 years 2 months ago Location: Portland, OR, USA
This exhaust will be a durable exhuast. Not any different than an FMF or Pro Circuit would be as far as durability goes. The aftermarket exhausts usually help crispen the throttle response and will provide small gains in the powerband. The exhaust systems on the stock bikes are not bad at all, so you wont see huge gains from just changing the exhaust. I have provided a dyno sheet from Two Brothers that shows the curve for this exhaust system on the 2010 RMZ250.
2008Yz250F 2 years 2 months ago Location: Wainwright, AB, Canada
Does anyone know how easily this exhaust will crack or break?
If it end up setting my bike down in a corner will it crack?
MotoSport Staff
2 years 2 months ago Location: Portland, OR, USA
The carbon fiber exhaust systems will not be as durable as a metal muffler would be. If you do go down, rather than bend like an aluminum or titanium muffler, the carbon fiber will crack or break. Keep in mind the carbon fiber cans also require a much stricter re-packing schedule. If you do not keep the muffler fully packed at all times, the carbon fiber can get to hot and become very brittle. Truthfully, there is no performance gain except for a small weight savings when using a carbon muffler.
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