Look at going 2 3/4" on pipe diameter... it takes a lot of rwhp to justify 3" exhaust... you may be losing out on potential hp... research it... I've seen some people do it on other cars under 520 hp and it was better once they lowered the pipe diameter!!! Sick looking Charger!!!
Okay so update.. I deleted the cats, had an X pipe made, and added two Magnaflow Mufflers. The car sounds real nice not obnoxious at all, so im happy. The other parts I order all came in today and I will install them probably tuesday.
Hey guys I had my R2C Cold Air intake, UPR catch can And thermostat installed today. The car feels and sounds even better now with the intake and doesn't pass 175-180 in temperature. I'm super happy with how the car feels, I also started using my ACES IV fuel additive today.
Ok well I did a custom CMR and it only raised the hp by like 5 hp and took away the knocking that the diablo 93 octane tune had. I was kinda disappointed the car made 430rwhp and 440 tq.
nothing you added was really a performance mod. you basically got an extra 25-30 HP from a CAI and a tune! that's really not bad at all! (figuring about 400-405 for stock HP to the wheels).
add a cam (and re-tune). it may only give 20-30 HP, but she will feel completely different!!