This Borla performance muffler is built for the verified 2008-2013 Chevrolet Corvette Base application listed below. Select it by exact manufacturer part number 400945 and confirm the full engine, drivetrain, body, wheelbase, factory-exhaust, and Borla application notes before ordering.

Key Features

• Directional Design: 2.5in offset inlet/single center outlet; outlet identified by welded mounting bracket for optimal flow and custom sound.
• Precise Dimensions: 14in length x 4.35in width x 9in height, all-welded rectangular oval shape for direct fit in tight spaces.
• T-304 Stainless Steel: Premium material resists corrosion for long-term durability and consistent performance.
• ATAK Sound: Aggressive exhaust tone tuned specifically for LS3 engines, dramatically reduces drone while providing heart-pounding soundtrack.
• Uses standard pipe connection type; clamps or welds to 2.5in piping.
• Leaders in stainless steel exhaust design for street and racing since 1978.

Fitment

Specifications

What’s Included

One new Borla product identified by manufacturer part number 400945. Clamps, hangers, gaskets, tips, pipes, tools, and companion parts are included only when expressly listed for this exact part number.

About Borla

Borla develops stainless-steel exhaust systems, mufflers, tips, pipes, and related components for vehicle-specific and universal performance applications. Product selection remains exact-application and exact-part-number specific.

Related Borla Products

• Borla CrateMuffler LS3 ATAK 2.5in Offset/Offset 14inx4.35inx9in Muffler
• Borla CrateMuffler LS3 S-Type 2.50in Offset/Offset 14inx4.35inx9in Oval Muffler
• Borla CrateMuffler Big Block Mopar 383/413/426/440 2.5in Offset/Center 14inx4.35inx9in Oval Muffler

Browse the Borla collection for related exhaust systems and components.

Frequently Asked Questions

Will this Borla part fit my 2008-2013 Chevrolet Corvette Base?
That application is listed, but confirm the engine, drivetrain, body or cab style, wheelbase, factory exhaust layout, tip opening, and every Borla application note before ordering.

Will this change require an engine tune?
A cat-back, axle-back, tip, muffler, or post-catalyst component usually does not require tuning, but confirm the exact application, emissions configuration, oxygen-sensor locations, and local requirements before installation.

What should I inspect before installation?
Check the shipping carton and components against the exact part number, then inspect clamps, hangers, gaskets, mating flanges, clearances, tip alignment, and required reused factory hardware before removing the original exhaust.

Installation Instructions

Follow the current Borla instructions and vehicle service information for this exact part number. Let the exhaust cool, support the vehicle safely, compare all parts before removal, protect sensors and wiring, use the specified clamps and torque values, align all joints and tips without preload, confirm body and suspension clearance, check for leaks, and retorque after the first heat cycles. Professional installation is recommended.