We have done quite a few "baseline" pulls, but the only header pulls we havehad the chance to do are on cars we did not baseline. If you look at what we were getting on almost every base car we did (the dyno we use is very conservative)and then the results of the header cars it shows anywhere from 20-35hp gain although the A/F is still rich because of the factory PCM they have a hard time making much power out of a 10:1 A/F. The Off Road PCM will eliminate this terribly over rich condition and the combination PCM and headers should beworth a very strong 50+hp.
Is the noise level much more with those exhaust upgrades? I've been searching for a supercharger kit, but of course I think it's too early. Is there a link to ask/check with the boys at SRT to see if they can provide some info? I'd even be willing to buy an SRT supercharger package as I know it would work without any conflict issues. Thx. for any info.