2nd Gen JCW Most liked posts in thread: New exhaust recommendations needed

Milltek PERIOD!

 

Since it's a JCW there is no second cat so for stock class it is legal for you to replace all the way up to the Downpipe.
I'd suggest the NM Engineering DP back exhaust, it has a great sound and fits perfect.
If you have a bigger budget the Akrapovic is pretty cool.

 

I'm not sure how much extra power you'll be getting from a catback, but some can sound really nice. Since choosing an exhaust is pretty personal thing, I feel it's hard to make a recommendation since what one person might think is great, another may not like at all. If you know a good exhaust shop, you can talk to them about getting a custom exhaust. If you're interested in saving a bit of money, that's worth looking into. Otherwise IMHO the exhausts that have already been mentioned are pretty great, but I suppose I should add that I ended up with a Remus myself. It sounded the nicest to my ears

 

Pete Installing ANY catback on ANY turbo MINI will net very little or zero HP gain. The power is really in the DP and intercoolers which obviously are not legal for stock AutoX class. but good news is the new rules this year will allow you to install a rear sway bar, the Hsport comp will be the way to go.