stillen supercharger with hfc
 

2010 370 with kentix hfc and invidia exhaust. im about to put stillen headers with a stillen supercharger kits and oil cooler and stillen crank pulley. i have heard about leaving stock cats on instead of hfc. can anyone tell me if i can run hfc with no problem or if i should go back to stock.

You should read up more on the Stillen SC kit and running headers... My advice: skip the headers and buy a GTM stage 2 SC kit! MOAR PWR than you know what to do with!!!

Just Skip the headers, Stillen kit is more than enough, Just do not run their tune. Custom tune on either one is must.