Aim trying to find how much restriction there is in JCW Cat-back compare to the Borla Cat-back, I would like to install a Alta down pipe and Inter-cooler, but Aim afraid that the JCW will defeat the purpose of a complete free flow system, I need some opinion regarding this matter.... Also if i decide to change to a different Cat-back, is there any resale value for my JCW.

 

Altas downpipe will only fit Alta catback according to their site. I feel Borla is great as is ALta, but I think Alta is a more reliable system.

 

You should be able to sell your JCW exhaust here. In September somone was selling one for $225.00 and it was gone in a week or so.
However Morristown Mini now has it new in box for $675.

 

i might be interested in the JCW exhaust - but i dont know much about it - does it have a different tone and a more aggressive look than the stock R56 MCS with hypersport package?