BBR Tuning High Performance F2 Thrust Exhaust Muffler- Black

I bought a black one for my son's bike and it was way better than I expected! Pretty good fit with some minor tweaks. It's a bit louder than the stock exhaust but makes up for it in the performance gains. Better quality than I expected and a better performance boost also! Love it and am ordering another for my bike.

Looks really cool, sounds really good and boosts torque and top end. Best bolt-on upgrade you can buy. No joke. It’s worth it for the 50$. Not as loud as I thought it was which is good. It’s loud but it’s not no-exhaust loud. Only issue is mounting it: it’s hard to get to the mounting studs and figuring out where to mount the support bracket is tough. Other than that, it’s spectacular!

Unlike some people here, the welds on my pipe were in decent condition; no holes through the welds or anything bad like that. The pipe looked like it wasn't going to line up, but the install went smoothly. I recommend using the supplied hardware to make a brace for the rear so you don't end up breaking the block where the pipe meets it, since this pipe is long and puts a lot of torque on those bolts. This pipe is insanely loud, the decibel ratings from bikeberry.com's test don't do it justice. Some of my friends are scared to ride it in public. The performance is better, especially in the midrange, and we were able to squeeze 2mph more than the stock pipe, so from 24 to 26mph. We also installed a new spark plug and tuned the carb via the idle screw to get it to idle, and the e-clip on the needle to get it to optimal conditions. Upon a heavy load, such as going uphill and twisting the throttle a lot, the sound changes from a POP POP POP POP to a weedeater sound. Not sure what exactly that means but it may just have something to the with the shape of the pipe. The sound difference is not gradual either, it's a distinct difference when it makes that sound. ALSO, the pipe shoots the exhaust directly on the rear tire and braking surface of the wheel, so I'm going to buy some rubber or silicone (or metal at a last resort) deflector to shoot it out of the direction of the tire. Lastly, this pipe is a leg burner. I've burnt my thigh on it at least 3 times already, so I'm buying some exhaust wrap to wrap around the pipe to help with the leg burns 4/5 stars, i was expecting more of a performance jump.

This pipe is much better than the expansion chamber i have and as for the guy that left the review that his stuck way off to the side he didn't even have a regular bike engine cylinder. Mine fit perfectly and sounds awesome also gave it lots of power.

its pretty heavy for not having a single welded on attachment.. it looks like someone learned how to weld making this. And then spray painted it. Its very badly made for a $50-60 part. That being said, this is the best expansion chamber ive boughten for my motorized bikes. The only one close to it was the wrap around the frame expansion chamber, and its top end isnt as high as this muffler. Also my other mufflers are made better. This one is just shapped differnt and works the best. LOUD.

Would not purchase again. Not happy at all. Looks used and all scratched up.

I knew this was loud when I got it, but I also saw a lot of people with pretty significant gains. If it's that good, I don't care how loud it is. So I installed it and went for a ride. My top end increased by about 3-5mph and I got better mid range power throughout. I couldn't be happier with the performance. I put a fiberglass pipe wrap over the pipe after I burned my leg. The wrap fixed it. Now, the noise... I figured I could put up with any amount of noise. I like loud pipes. But, after installing this, I was literally embarrassed to drive it through town. I was driving down my block, which is basically in the woods, and my neighbors covered their ears. So I basically removed the pipe and it's sitting on my garage floor. I would install it if I was riding through a more rural area or racing, but I am basically too embarrassed to ride it around my neighborhood.

Fits perfect on my bike, haven't ran it yet, but it looks awesome, unlike the stock exhaust. The design is great. Just what I was looking for. Happy with my purchase!