i will have battle boxes both upper and lower before i hit the track. my car had been launched very hard alot of times, so the boxes are kinda hurting, but after the next mod, they will be ready for my abuse.
I don't know what all these other guys are saying about the air intake not helping that much. It helps a lot, if you retune the computer. If you can afford it I would strongly suggest the C&L intake with SCT X-cal2 tuner. ESPECIALLY for an auto like yours. I have a 06 GT and after installing the intake and reprogramming I dropped .8 seconds in the 1/4 and get about 2-3 MPG better. Kinda pricey at around 500-600 bucks, but it is the most bang for the buck mod you can do to a stock automatic.
Shes only got the 6er but every little bit helps.
2012 Race Red GT w/ a 5 Liter and a 6 speed
2010 Dodge Challenger R/T traded in.
'03 DBS Cobra .... Traded in, THANK GOD
'01 Ford Lightning.... Sold, sorely missed