These new 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 available in 439 stainless steel and are offered as 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.

Additional Information

Vari-Tune Axle Back Exhaust Kit; 2.75 in. Pipe Dia. Single 4 in. Brushed Stainless Tips; Incl. All Required New Hangers/Hardware/All New Clamps; 304 Stainless Steel;

Part Type

Exhaust System Kit

Features and Benefits

• 439 Stainless - Fully Adjustable Varitune Mufflers Add Great Sound And Performance - 4 inch Brushed Tips
• Made In The USA

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

• 439 Stainless - Fully Adjustable Varitune Mufflers Add Great Sound And Performance - 4 inch Brushed Tips
• Made In The USA

BBK VariTune axle back exhaust systems offer full tuning ability. Featuring BBK's patented adjustable power valve, the systems come complete with two tunable VariTune performance mufflers engineered with the high-flow direct fit stainless steel tubing and hardware for an easy bolt-on installation. They include a pair of stylish 4 in. stainless tips to deliver good looks along with maximum performance. The performance mufflers that can be adjusted for sound and horsepower, from underneath the car, by simply moving the adjustment screw in or out. VariTune mufflers utilize a unique internal power valve that when in the closed position blocks the exhaust flow, forcing it through all three chambers of the muffler for a classic mellow sound. When in the open position, the valve opens the exhaust flow allowing it to take the path of least resistance, acting more like a straight-through muffler for an aggressive throaty exhaust note. Simple, yet effective, the BBK VariTune rear axle back exhaust systems deliver the most performance, while allowing you to tune to the desirable level.

Please note that this information serves as a fitment guide only. For specific fitment questions or clarifications, please contact us, as manufacturers may introduce variations and modifications during model year or regional revisions. While we strive to provide accurate data, fitment details may vary by region; therefore, compatibility outside the listed region and submodel variant cannot be guaranteed.

Detailed Compatibility

This may not be an exhaustive list of compatible vehicles. Please reach out to one of our representatives if you are unsure or do not see your vehicle here.