BBK S550 Mustang GT Varitune Axle Back


Regular price $769.99 Sale price $699.99 Save $70.00

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BBK S550 Mustang GT Varitune Axle Back
BBK S550 Mustang GT Varitune Axle Back
BBK S550 Mustang GT Varitune Axle Back

ALL BBK Varitune axle 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 Varitune power valves are made with stainless steel for lasting durability and smooth operation. These patented BBK Varitune exhaust systems allow you to personalize the power and sound levels of your car 8-10 decibels and 10-15 horsepower.

All kits are direct bolt on replacements for the restrictive factory exhaust.

Every Varitune exhaust kit includes BBK Varitune laser etched logo 4" brushed stainless steel tips for impressive looks.

This kit is designed and built with 304 Stainless for years of maintenance free performance

Patented Varitune muffler design allows full adjustment of the sound and horsepower levels to suit your performance needs

Dyno testing has shown consistent 10-15 horsepower at the rear wheels over stock

Note: factory midpipe requires minor cutting for installation

BBK Performance are your number one aftermarket performance source - designed and manufactured In the USA

*Special order item-Item is made to order