long story short, i have a catless db, then 2.5 inch straight out with a glasspack at the end no more resonator or muffler... question is i have a custom ''S'' pipe i made to allow a center exhaust setup would you think this may caure too much restriction for a stage 3 ots map from cobb? got all the bolt up to run stage 3, cai, intake and intercooler
anyway i can see on the accesssport if i have too much backpressure.. here is the piece.
[/URL][/IMG]
anyway i can see on the accesssport if i have too much backpressure.. here is the piece.
