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Two Brothers Tarmac Exhaust System Honda CBR650F
The Two Brothers Tarmac Exhaust System features an unmistakable trapezoidal shape muffler that stands out from the rest of the TBR exhaust line. This unique shape not only increases lean angle clearance but also maintains optimal internal exhaust volume and performance. The muffler is constructed with a CNC-machined stainless inlet for a seamless fit, billet CNC outlet and rivet bands with larger 5/32” rivets for added strength and durability. So as to not compromise the great lines of the TBR Tarmac Exhaust, it features a strapless integrated machined aluminum exhaust hanger. TBR’s signature spiral-wound perforated core combined with the removable T-Tip insert ensures a muscular and full-throated exhaust note.
The carbon fiber sleeve of the Tarmac Exhaust is made of a 33 million modulus rated carbon fiber that is impregnated with high temperature resin. The carbon fiber is then cured under vacuum with over a 100 psi to remove any air that is trapped in the carbon fiber laminate. TBR exclusively uses thirty-three million modulus rated carbon fiber for the Tarmac Exhaust because of its strong yet lightweight properties.
All exhaust pipes of the Tarmac Exhaust Systems start life as .035" thin wall #304 stainless steel tubing. #304 stainless steel, a lightweight austenitic chromium-nickel stainless steel which has low thermal conductivity properties and is corrosion resistant, even in the harshest environments. TBR then takes this versatile alloy and infuses it with their stepped exhaust technology. The stepped header system forces the exhaust gases to travel through incrementally larger diameter exhaust pipes on its way to the muffler. This design creates a vacuum effect that forces hot exhaust gases out, allowing your engine to breath better while simultaneously increasing horsepower, torque and throttle response.
- Teflon coated magnesium end-cap
- Stainless steel springs
- Stamped spring-fit inlet
- Optional anodized bolts kits available (sold separately)
- Made in USA
|Unit||Stock Exhaust||Two Brothers||Max Gain|
|Max Power||HP||79.14||83.89||+ 4.75|
|Max Torque||ft-lb||43.45||45.18||+ 1.73|
|Product Style||RevZilla Item #||MFR. Product #||Availability|
|Product Style Carbon Fiber / Full System||RevZilla Item #985295||MFR. Product #005-4020105-T/||AvailabilityIn Stock: Ships within 24 hours|
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Reviews & Questions
Things to note: Install a Dynojet PCFC or Power commandeer, replace the header gaskets.
The sound is amazing and I was able to keep my OEM exhaust just incase I move somewhere or the law changes where I need to have the Cat. Converter inline. Some people take to shop, but it's doable by watching youtube and looking through your maint. manual you can download.
Good luck guys also, dyno jet has the profile for Two Bros, however I didn't see any for Yosh. not saying you can't get it from somewhere if needed if using the Yosh.
Overall, after full install, and a couple days of letting it settle in, the sound is down right amazing. The end result is so worth it. Paired with the power commander, the power difference is felt almost instantly.
Looks and sounds amazing. 100% recommend
1 year ago
7 months ago
Installation was fairly simple if you have some mechanical knowledge and patience. Make sure you have ratchet extensions, knuckle sockets (u-joint sockets) and large allen wrenches. Took about 2 hours from start to finish taking my time.
P.S - apparently you can remove the baffle in the canister to make it even louder :-)
This exhaust (full system TWO BROTHERS TARMAC) is AWESOME.
*PROS: increase in power, decrease in weight, and a super awesome sound
*CONS: instructions somewhat vague and lacking detail, do not attempt this if you have no mechanical knowledge...this is serious stuff
My opinion: PROS > CONS (a good thing lol)
If your swapping from the CBR650F stock, OEM exhaust.... don't even waste any time consideing the other options...you want the two Bros tarmac exhaust.
Change you can feel, see, and hear:
The rich, deep and throaty idle purrs like a lion and roars like a beast. The addition of 5 horses is amplified by the shedding of 14 lbs...as a result...this new power is felt INSTANTLY after install (and inspection, of course - make SURE you check, and double check, all fasteners and connections before you pat yourself on the back and suit up for your first ride ...you'd be surprised how much the bolts and nuts can rattle loose if you skimp on the torque specs. And recheck after every ride for the fist few, then after about 100-150 post-install miles, do a final tightening) You'll definitely turn some heads with this exhaust (if you weren't already).
The install got a bit hairy due to the instructions being a bit confusing and sometimes hard to follow. Id have to recommend adding colored, and a bit more detailed install instructions (colored instructions can be found on two bros and revzilla websites actually, but not everyone has a tablet or a colored printer handy in the garage) but this would make certain steps easier for the aspiring moto enthusiast and would be far less confusing.
Post install I'd recommend either taking it to you local shop to make sure you've completed the install correctly ( AND TO POSSIBLY SAVE YOUR WARRANTY, depending on your state of residence)
However, being someone who's never installed a complete exhaust system before, I most definitely wouldn't say that this installation is very difficult one. Just make sure you pay attention to the details that are provided for you, and if you don't know...ASK! The hard work will be very rewarding.
Big thanks to both TBR and Revzilla for making this possible.