Someone I know has an M240i (same motor) with decatted downpipe running on BM3 tune (aggressive burble) and I find it annoyingly loud. I believe he's still running stock muffler, too.
Not at all. It's pretty quiet in the cabin during normal driving conditions, and it screams like a beast when you hit the accelerator. The best thing about doing this mod is you can always go back to stock muffler if you don't like the sounds of it.
Oh wow! I think I like the looks of the BMS ones better especially with all the grooves in it. How do like the Eventuri intake? I thought picking up the aFe Takeda Momentum when it becomes available in June, but I'd be willing to drop a few dimes for Eventuri if you notice significant gains. Do...
I thought about doing the same. Any chance you could post a photo of the powder-coat red?
Does anyone have any input on these? I thought about going with these instead because the blue is so hideous...