project mejiers parts exhaust

its a sad day for car enthusist:SP?: a friend of mine bought the piping from mejiers auto department and built himself ans exhuast system. now i didnt fron on it that much untill he revealed that he bought the mejiers red weird lookin muffler too. so his 2'' meijers exhaust acording to him kicks major ass. lol would this even add any power at all of just make it sound terrible.