Originally Posted by ala_xfire

Define "reasonable".
There is really not much you can safely do, just 3 basic things :
1. CAI ( Needswings, $449 )
2. 74mm throttle body ( fleabay or car-part.com, @ $50 )
3. EuroCharged tune ( on sale now - $300 )

Best bet is to get lucky and sell yours high and buy an SRT6 low.