1986-2004 MUSTANG GT LX COBRA VARITUNE FULL CAT BACK EXHAUST SYSTEM SS TIPS 2003-chevrolet-astro-esi9388178 Shock - SMX Series -

Shock - SMX Series - Monotube - C12-R2 Valve - Steel - Black Paint - Rear - GM A-Body / F-Body / G-Body - Each

LS6 and LS7 engines using coils with a standard LS3 bolt spacing of 72mm (coils not included)

25 in Dish - 4-Spoke - Walnut - Wood Grip - Steel - Silver Paint - Each

549 in - Intake Duration 208 - 108

625 in Height - Baffled - Breather Holes - Grommets Included - Steel - Chrome - Small Block Chevy - Pair

1986-2004 MUSTANG GT LX COBRA VARITUNE FULL CAT BACK EXHAUST SYSTEM SS TIPS 2003-chevrolet-astro-esi9388178 Shock - SMX Series -BBK Varitune cat back exhaust systems feature BBK Varitune mufflers that have a patented adjustable power valve inside that allows full adjustment of the exhaust flow through the mufflers chambers for a great sound and added performance. This adjustment is made at the rear of the muffler with a wrench by either moving the valve in or out. Once you are happy with the level of sound, it is locked in place with the Varitune locking nut. All of the