Hi.
I have just purchased a prodrive hi-flow cat and prodrive back-box for my 03 Sti. Could someone tell me what else i require? will a de-cat centre pipe be all i need? thnaks very much! I want to get it right.
siggy

 

second decat pipe about £70 from ebay

 

cheers matey.
was goin gto go for a straight through centre section too but too noisy i am told.