WAAA HAHAHAHAHA - A 300rwkw XR6T VS a 5.7ltr Commo. You will need a telescope to see him - looking out your back window!! For 300 you will need - valve springs, cat, cooler, injectors, edit and custom tune... plus all the other things that might break/wear out with that power. You will be looking at an 11-12 second car...