my 5.0. is still stock but some kat in a suped up ass rsx pulled beside me on the freeway.... so i downshifted on his ass.... i was in front of him for the longest./ we switched freeways and everything so finally he hit something nd flew past my ass lol.... shit was cray.. im doing 140+ and he came fartin right past my muthafukkin ass.... i know he had a supercharger/turbo and juice. shyt was crazy