zedman86 said:this right here http://shop.quicktimeperformance.com/cart.php?m=product_detail&p=25
and about $100 for welding. and you want to get a 3" dp. and you need to tune to feel the difference. tuned pushing through the stock catback i was 10 hp lower but with it on the open map i gained 10hp once the tuner added a degree of timing.