you guest it ,,My car is at Rudy;s right now , he and Paul are installing a supercharged sl55 V8 into my srt6. and with the added goodies, i will be ready to head to the track. for all the guys and gals that drove Paul's car at the dragon you should jump into this ,, as Rudy had said to me the 55 engines are getting scarce I am so glad i got to drive Paul's car as that made up my mind, you see i was going to get a used 2009 caddy ctsv for 50,000.00, now i saved a lot of money and can out run the caddy ,,on top of that i get to keep my crossfire. jim