I have 2007 Charger SRT8 with AFE2 CAI and canned 91 octane CAI Predator tune....What what next mod be to gain some more hp/tq...it dynoed at 370/370 last summer after CAI and predator tune(temps in 90s). I have not raised the shift points. Long tube headers? I searched prices and it seems about $1500 w/cats plus install...what is ballpark rwph/rwtq gains with dyno tune? About 20rwhp/20rwtq? What are decent brands? Dynatech? Any other considerations for mods in the $2K price range?
Ralph, i have all the above and still run stock shorties with catless mids, and trap at 115+...Bang for buck, it's not a very worth wild mod.
I run cleaned up stock 6.1 manifolds. They are enough to almost put me into the wall while leaving the Doubletree