Quote:
Originally Posted by scottj23
It's only because I went with a Stillen supercharger. Stillen advises to use the O.E.M. cats, they said other aftermarket cats cannot be used.
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Also to add on u can use the HFC'S or TP's.....best bet is to get a custom tune.......
DEpointfive0 is right....u will lose boost from back pressure but not power.....u can also counter the boost loss by getting their 9lb pulley Instead of switching out ur cats....We have no emissions here so I opted to go with Resonated TP'S from Berk way before I bought my S/C.......this was the best route for me as I figured there's nothing to burn.....Stock Cats and HFC'S will still be prone to failure from the extra EGT's.....this will require u to buy and replace the part later on down the line and can also cause serious problems if ur exhaust gets clogged up from the cats blowing out......Using TP'S takes that problem put of the equation.
Best of luck to u with ur build man....
