BBK Adj Varitune Axle-Back Exhaust System | Ford Mustang GT (15-16) (41115)

The BBK Varitune axle-back exhaust system for the 2015–2016 Ford Mustang GT replaces the restrictive factory exhaust and lets drivers adjust exhaust flow and sound. Its patented power valves move in or out using a wrench at the rear of each muffler, then secure with a locking nut once the preferred setting is reached. BBK states the system can personalize sound by 8–10 decibels and add 10–15 horsepower. The power valves are made from stainless steel for durability and smooth operation. The kit is available in aluminized or stainless steel and includes 4-inch brushed stainless steel tips with laser-etched BBK Varitune logos.

This axle-back system is listed for 2015–2016 Ford Mustang GT models. The provided information does not specify engine details, chassis codes, or additional fitment requirements, so confirm vehicle compatibility before installation. The title identifies a cut-and-clamp, direct-bolt-on design, while the product description describes the kits as direct-bolt-on replacements for the factory exhaust. The adjustable mufflers allow sound tuning to suit individual preferences, with the selected valve position secured by the included Varitune locking nut. The kit includes the axle-back mufflers and branded 4-inch tips; the source does not specify other included hardware or whether cutting is required for a particular vehicle configuration.