The all new CBP 2005-07 Mustang GT Exhaust System. We have put together the 3 best pieces MAC has to offer into one rumbling kit. When you purchase this kit you will get the following: 1. 2.5" Prochamber Mid Pipe 2. 2.5" Cat Back Exhaust 4" Slashcut w/ Rolled Tips 3. 1.75" Long Tube Race Headers, Ceramac Coated How much horsepower will you gain? We bet at least 40rwhp with this complete system. We are setting you up with the BEST headers, mid pipe, and catback on the market for your 2005-06 Mustang Gt. Look for AMAZING sound from this complete MAC exhaust system. We are freeing up some air here and that means only 2 things, Power & Rumble! What are you waiting for? Make your 2005-06 Mustang GT faster, louder, and more appealing than any other .... order your system today. FOR A LIMITED TIME ONLY SHIPPING IS FREE ON THIS ITEM!! ORDER NOW