Quote:
Originally Posted by ANMVQ
Nice man !! What no start up VID, LOL , Yea the sound of the SC is intoxicating for sure, I loved the sound of mine when I had it ( Stillen) BTW not sure how different the GTM kit is but Stillen told us to keep the stock cats on the car ? Cars actually lost WHP with TP's .
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Honestly you will not lose HP with TP v stock cats, I ran LTH & TP and kept the same power as stock cats, just have to tune it for a more open exhaust.
The issue with HFC & I believe RTP is they will break down and could clog the exhaust where stock cats, LTH, and TP do not have this issue. LTH & TP are just straight pipes & stock cats versus HFC have better heat control that do not break down as quickly.
I remember a few places talking about making better HFC that can withstand the heat of boost, but nothing ever materialized from it that I remember.