BBK 87-93 Mustang GT Cat Back Kit Varitune Mufflers - Aluminized turn downs

The standout feature here is the patented Varitune muffler. Inside each muffler is an adjustable power valve that lets you control exhaust flow. By simply turning a wrench at the rear of the muffler, you can move this valve in or out to change how much exhaust gas goes through the muffler's chambers. Once you find the sweet spot for sound and power, a locking nut keeps it in place. The internal valves are made from stainless steel for durability and smooth operation. This system is constructed from aluminized steel for good corrosion resistance and features brushed stainless steel tips. It's a direct bolt-on replacement, meaning no welding or cutting is required for installation.

With this system, you can expect to personalize your Mustang's sound and power output. BBK claims you can adjust the sound level by 8-10 decibels and gain 10-15 horsepower, depending on how you set the valves. This kit includes the necessary hardware, hangers, and clamps for a complete installation. It's a solid option if you want to tune your exhaust note and unlock a bit more performance from your Fox Body GT.