[Supercharged SS]

Originally Posted by CamaroJHL

Hello everyone, I have a quick question... I recently did some mods to my car (ss manual)... Full ARH exhaust with no cats(1 7/8 headers, 3 inch xpipe and ARH mufflers), port and polish TB, under pulley, 160 tsat, tr55 spark plugs and a dyno tune(mustang dyno). I dyno at 397rwhp. My question is that good numbers?, the reason I ask is because everyone that I've talk to and seen with the same setup usually are at 415 to 430 rwhp on the same mustang dyno. Thanks guys.

You don't have a cai? That's your missing 10-15 rwhp.