I've seen alot of cat-back exhaust systems available for the Clubman...
However, turboback systems are coming up short.

The ones that I've come across via Google and forum searching is:
* Alta Performance (R55 S & R55 JCW)

Are there other choices around that haven't been spotted?

- Erik

 

I've been on the same quest, with the same result for Cami's car. Best I can find is a Alta downpipe and then catback from your favorite vendor. Downpipes are quite spendy for these little guys.

Kris

 

Partly because it contains the catalyst for emissions.

- Erik

 

How abut ones without a catalyst? Who makes those? Will they cause the computer to throw a code?

They don't check for emission stuff where I live.

Dave

 

I haven't looked as I need a catalyst system for my installation.

Yes, using a non-catted downpipe will produce a Check Engine Light (CEL) and fault code [usually catalyst efficiency below threshold] on stock programming.

- Erik

 

But you'll probably want a tune to help the downpipe and if you go with an accessport you can clear the CEL

 

Most of us highly modded vette guys run sims on the rear oxygen sensors or as in my case use wideband sensors to aid in tunning and just have the computer tell the local inspection station that everything is ok. They don't sniffer test cars in Texas that have OBDII. I have random technology cats on my Vette and it would just barely not pass and I have 427 c.i. and a huge cam with a crap load of overlap.

I would imagine that a tuner on the MINI can do something similar.