M3 - Exhaust modification - High Flow Cats?

[tomvcarter]

I am thinking of replacing my exhaust with a xpipe which would delete both cats and replace it with 1 set of High Flow cats and a resonator...
Are there any implication for legal use on the road if i were to do this? Does any one have any experience of doing the same with an M car?
THanks Tom

[kds keltec]

Tom

That mod will be fine for road use with no legal problems , i carry out the same work to a few of my customers cars , and also all of my own cars old and new .

Just made some cat by pass pipes for my tuscan , but the M3 runs miltek high flow 100 cell cats and exhaust







What high flow cats do you intend on using ?


Kelly

[tomvcarter]

Thanks, i'm thinking of installing the Active Autowerk x-pipe (Gen 2) with 200 Cell HFC's. Let me find the link...

[gilford]

Doesn't this cause "issues" at MOT time?

[tomvcarter]

http://www.m3post.com/forums/showthread.php?p=7173...

This is the preview of the part, what happens at MOT?