not to knock wizard cuz i have no doubt its the best design but from one college student to another.... make your own. get some 3" or bigger pvc plastic with a small bend and a 3" connector. and but some sheet metal while your there cut it in a wizard type box and bolt slash rivit it together. im sure some of you think its ghetto but i painted it heat shilded it and it looks pretty bad ass plus my mpg went up about 4 and its a hellofa good driving mod. like i said im sure wizard is better but i spent 50bucks total including glue and paint