I had my 2010 ss auto and the dyno results were 303.1 [email protected] 6211 rpm with [email protected] rpm, 1st pull, 2nd pull 307.0 HP @ 6191 rpm and torq 276.6 @ 4621 rpm. I bought this car used, has 20000 miles and no mods. Looks low results, was hoping to be at 330hp. Put on a Halltech Cold air today, will be putting on aflowmaster 3" cat back this thursday. Think its possible to get to 390 hp with these 2 mods and a custom tune? Any one know a good shop in OKC? Thanks