it all depends on so much, upping the boost on SRT-4's can slow ur car down if its not done right...hell my first time running at the track i lined up against my boy who is running 20psi with catback and stage 1 and i toke him down by like .3 seconds. if u have leaks, holding to much boost, or not tuned right and ur running high boost ur car ain't shit. i'm gonna run stock boost myself untill i got the cash to get a AFC and get tuned.Originally Posted by Alex(06Rex)






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Well with a good protune I can have up to 240-250 whp and over 300 wtq, well about 310-320, so yeah and my car comes up to about 3290 with me in it. The numbers you saw before were just with a reflash remember that.

