BBK VariTune Adjustable Performance Muffler 2-1/2 Offset/Offset Stainless Steel

This BBK exhaust system component is designed for the exact vehicle or component configuration identified on this page. Review the verified fitment or universal interface, specifications, included parts, and installation requirements before ordering.

Key Features

• Low Restriction Chambered Design for Maximum Exhaust Flow.
• Double Offset – 2.5″ Diameter Offset Inlet and Offset Outlet.
• Universal Fitment; Choose The Correct Diameter and Offset for Your Application.
• This is a universal muffler, making it useful in many applications.

Fitment

Specifications

What’s Included

One new BBK product identified by manufacturer part number 31015. Gaskets, fasteners, wiring, sensors, fittings, clamps, filters, fluids, tuning, and companion components are included only when expressly stated for this exact part number.

About BBK

BBK develops intake, throttle-body, exhaust, fuel, oil-separation, and chassis products for domestic performance vehicles. Product selection remains exact-application and exact-part-number specific.

Related BBK Products

• BBK 86-04 Mustang Cat Back Kit Varitune Mufflers Stainless Steel Tips
• BBK Vari-Tune Axle Back Exhaust Kit 2 Adjustable Performance Mufflers 2-3/4 Pipe 4 in. Tips
• 1986-1993 Mustang 5.0 High Flow H Pipe With Catalytic Converters – 2-1/2

Browse the BBK collection for related airflow, exhaust, fuel, and chassis components.

Frequently Asked Questions

Is this BBK part vehicle specific?
No verified vehicle YMM is assigned. Match the exact dimensions, thread, connector, material, quantity, and compatible BBK system or component before ordering.

Does this connect to factory exhaust or BBK headers?
Use the exact application notes. Pipe diameter, flange style, catalyst placement, and companion header or exhaust part numbers must match.

Will exhaust sound and clearance change?
Both can change. Sound varies with the complete system, while clearance depends on chassis, transmission, suspension, and ride height.

Installation Instructions

Follow the current BBK instructions and vehicle service information for this exact part number. Confirm the application, interfaces, tools, hardware, fluids, torque values, wiring, clearances, emissions equipment, calibration, leak checks, and startup procedure before returning the vehicle to service. Professional installation is recommended for fuel, exhaust, suspension, drivetrain, or electronic throttle work.