{"product_id":"bbk-performance-parts-vari-tune-adjustable-cat-back-exhaust-system","title":"BBK Performance Parts Vari-Tune Adjustable Cat Back Exhaust System","description":"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. Fits 87-93 GT ONLY\u003cp\u003e\u003cbr\u003eShop high-quality truck parts, auto parts, and performance accessories engineered for strength, reliability, and a precise fit. Each component we carry is carefully vetted for durability, safety, and real-world performance—meeting or exceeding OEM standards. Whether you’re replacing worn parts, upgrading suspension systems, or adding off-road equipment, Truck \u0026amp; Auto Parts Store provides trusted OEM and aftermarket brands designed to handle the demands of trucks, SUVs, and 4x4s. With expert support, fast U.S. shipping, and a commitment to customer satisfaction, you can order with confidence knowing every product delivers dependable performance on the road and off.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"BBK Performance Parts","offers":[{"title":"Default Title","offer_id":51268718657752,"sku":"BGRW_3002","price":649.99,"currency_code":"USD","in_stock":false}],"url":"https:\/\/www.truckandautopartsstore.com\/products\/bbk-performance-parts-vari-tune-adjustable-cat-back-exhaust-system","provider":"Truck \u0026 Auto Parts Store","version":"1.0","type":"link"}