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 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. This kit is built with aluminized steel with brushed stainless steel tips. Each Kit is a direct bolt on replacement for the restrictive factory exhaust. Does NOT Fit 1986-1993 Mustang GT with turn downs - See part # 3002. 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 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. This kit is built with aluminized steel with brushed stainless steel tips. Each Kit is a direct bolt on replacement for the restrictive factory exhaust. Does NOT Fit 1986-1993 Mustang GT with turn downs - See part # 3002. All BBK Performance parts are backed by a 1-YEAR manufacturer’s warranty from the original date of purchase. An optional extended warranty is also available - giving you an additional 2 or 3 years from original date of purchase. Costs for the extended warranty option can be viewed when the item is added to your cart. The manufacturer’s warranty is based on normal use and installation of each product.. 3.5" Brushed Stainless Steel Tips - Direct Bolt On 2-3/4" Cat Back Exhaust Kit - BBK Varitune Mufflers Have An Internal Power Valve That Allows Fine Tuning of Sound and Power Levels. Vari-Tune Adjustable Cat Back Exhaust System; 2.75 in. Pipe Dia.; Incl. 2 Varitune Adj. Perf Mufflers/Necessary Hdw/Hangers/Clamps/3.5in. Brushed Stainless Tips; Alum. Mild Steel;. 1986-2004 MUSTANG GT LX COBRA VARITUNE FULL CAT BACK EXHAUST SYSTEM WITH STAINLESS TIPS. 1986-2004 MUSTANG GT LX COBRA VARITUNE FULL CAT BACK EXHAUST SYSTEM SS TIPS. BBK 86-04 Mustang Cat Back Kit Varitune Mufflers Stainless Steel Tips. Vari-Tune Adjustable Cat Back Exhaust System. ALL BBK VARITUNE CAT BACK EXHAUST SYSTEM. Exhaust System Kit. BBK Exhaust Pipes. Made In The USA. Exhaust Pipes. Cat Back Kit

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