Our Performance Exhausts range includes a Mazda back box for the following models Mazda 2, Mazda 3, Mazda 6 wagon and saloon, 323, 323F, 323GT, MX3, MX6, MX5 NA, MX5 NB, MX5 NC1, RX7 and RX8. While our exhaust back boxes will give small power gains they are usually bought for their good looks with a choice of tail pipe design and their sports sound exhaust note.  Most are an easy DIY fit simply replacing the original back box.  The material used to build these exhausts is usually high quality stainless steel and or aluminised steel.  Most are guaranteed for as long as you own the exhaust.  Full exhaust systems and exhaust manifolds are available for some models. The back box is an easy DIY fit adding good looks with a choice of tail pipes, a small power gain and a sporting exhaust sound.  All these benefits can be had for a similar amount of money as your main dealer would charge for a standard replacement item. View our performance exhaust guide for further information on this product range.