I'm considering a catless downpipe for my jcw roadster project
Will it smell really bad

Looking towards manic stage 3,

Having run one occasionally on my r53 I'm not sure if the open top will make it worse or better


If I need to I would consider a full cat system, but would rather be spending that money elsewhere on the car

 

It doesn't smell too bad.

I've had straight pipes on other cars and they are much worse compared to the mini