Had a ~550rwhp capable Z32, and was part of the Z32 crowd for many years before moving onto Z34. Can probably count on one hand all the cases of exploded cats due directly to the F.I. fact, as opposed to Z34 platform where it seems to be way more common. Which like said earlier makes sense, can't have Cats so close to an F.I. motor.
Ended up, ordering these:
https://conceptzperformance.com/mega...z34_p_7318.php
They looked alright, and value was good. Can't for the life of me justify some 250+ USD just for some short test pipes because of a brand name.
Where I live though, Cats are crucial, and even if they do almost jack sh*t, at least they're there when the cops peek under, plus those TP's I picked up give the appearance of Cats with that 'resonated' chamber (which looking at it I know it can't do much). So, also picked up two 3" IN/OUT Cats. Should be able to take the Vortech @ 10 PSI + TG's A2A kit happily all day.
Quote:
Originally Posted by phunk
forced induction can kill cats, especially if the tune isnt spot on. i would just ditch the cats and do resonated test pipes if you can get away with it in your area.
if the boost goes down a little with test pipes, thats how you know they are doing their job. thats the good type of boost loss.
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