I bought the exhaust 2nd hand so cant get a refund. Just for a laugh I put the exhaust on today and at this stage (stock) the car feels faster and has a nice note! what power level could the exhaust handle? spoke to my local exhaust guy and hes going to take a look at it and see if it can be made 3.5" if not hes got a twin 2.5" pacemaker system that was taken off an fg. is that any good to me? thanks for all the reply's tis my 1st post.