Remove the cats or go to high flows if you're looking for better MPG. I love my supercharged 05 SRT 10 QC and the best MPG I could get is 13 on the highway. I would drive a prius if I truely cared about MPG. Nice looking truck, enjoy it!!
It's a pretty straight forward kit. I would suggest keeping the boost down to 5lbs on a stock motor. My qc made 550rhp/542 ft tq with the 5lb pulley and **** (cooling effect).
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