2010 BMW 135i

[RawrImAMonster]

Got my muffler back on yesterday. It made some difference in loudness, but like I was expecting not as much as I wanted. It did change the tone a good bit especially above 3500 rpms or so. It's much more aggressive sounding now and has a bit more of that high pitched inline 6 tone I like. I think adding downpipes to this setup would make it sound awesome while still being civilized if needed. I'm still not decided if I want to do that yet or not. It's only 350 and the install isn't that big of a pain, but still I don't really need any more power with no LSD and skinny tires.

For the cost, it's not bad, but I would definitely wrap both of those pipes rather than just one if you aren't planning on doing any other exhaust mods.

Unrelated, but the misfire is slowly getting worse. Hopefully it will throw a code soon.

Edit: Oh and this thing sounds awesome without the muffler on. It's not even as loud as the Trans Am was so I can see why people run muffler delete setups a lot. It drones a good bit so it wouldn't be ideal for daily driving, but it sounds really good.