Quote Originally Posted by bbptech View Post
Pretty much. I had a breather on and everything. How can it go from rough idling with the intercooler then taking that off and using a used S/C gasket with just the S/C and everything going back to normal?
It should have ran fine with the breather in place so I would suspect its a problem with the design. Were any of these ever tested on your own car Mini or did you just make them and send them out and hope for the best? bbptech> you do what you want but if it were me, I'd be asking for a refund.