[shanil89]

Originally Posted by David.m

Got a reasonable & expected response from North Shore BMW, only affect on warranty would be any problems caused as a consequence of having the non-oem cat installed.

I can remember reading about one case involving a Fabspeed but think that car may have had other mods/tune?(& I can't find it now).

I'm wanting a little boost in the exhaust note but want to keep the stock pipe/muffler, the Fabspeed seems to be the most reliable option (the extra HP I suppose won't go astray

Thanks David that's very helpful!!