...I agree, that the Crossfire will never sound like a muscle car. Then again, it was never supposed to be a muscle car. That said, if you open up the intake a bit (install cold air intake or short ram) and do the exhaust, it ought to sound pretty sweet. A good aftermarket exhaust will give it a deeper sound, and the intake(s) described will give it a nice roar at wider throttle openings. It will never sound like a V8, but I would put money on it sounding mean and aggressive if you do both of these mods.