Borla 3" Offset Inlet / Offset Outlet S-Type CrateMuffler - Chevrolet LS3 6.2L V8 (400959)
Dial in the acoustic signature of your custom build or restomod with the Borla S-Type CrateMuffler. Recognized as the world's first muffler series purpose-built to optimize the sound and power of specific crate and custom-built engines, this high-performance unit is precision-tuned directly for the Chevrolet LS3 6.2L V8 engine family. Calibrated around the exact combustion pulses and firing frequencies of stock-output LS3 powerplants, it delivers Borla's legendary S-Type sound profile—providing an aggressive, muscular growl under acceleration while dramatically reducing or eliminating interior cabin drone. For builders seeking a more subdued volume profile, this muffler can be seamlessly paired with an optional Borla front resonator to achieve a mellow Touring sound level.
Constructed entirely from premium T-304 austenitic stainless steel, this specialty muffler delivers maximum durability and structural integrity, outperforming lower-grade T-400 series alternatives against moisture and heat stress. The unit features an aerodynamic oval body measuring 14 inches long with a 3-inch offset inlet and a 3-inch offset outlet to accommodate offset underbody routing configurations. Engineered with a strict directional flow pattern, the exit end is easily identifiable by a robust mounting bracket welded directly to the rear endcap. Built using precise computer numerical control (CNC) manufacturing to ensure consistent internal dimensions, this premium component is backed by Borla's lifetime Million-Mile Warranty.
Features
- Acoustically tuned specifically for the Chevrolet LS3 6.2L V8 engine family to eliminate raw exhaust drone
- Classic S-Type sound level provides a deep, authoritative muscle-car rumble under throttle
- Can be integrated with an optional front resonator (Part #400939) to step down to a quieter Touring volume
- Heavy-duty directional flow design utilizes a factory-style mounting bracket welded to the exit endcap
- Constructed from high-grade T-304 austenitic stainless steel for permanent protection against rust
- Compact 6" x 10.34" oval case layout allows for excellent ground clearance on classic cars and custom builds
- Precision computer numerical control (CNC) manufacturing guarantees consistent, accurate flow geometry
- Proudly backed by Borla's comprehensive lifetime manufacturer Million-Mile Warranty
Specifications
Muffler Dimensions & Configuration:
- Muffler Tubing Size (Inlet / Outlet): 3" Internal Diameter
- Configuration: Offset Inlet / Offset Outlet (Directional Flow)
- Case Shape: 6" x 10.34" Oval Body
- Case Length: 14"
- Overall Length (OAL): 19"
- Target Engine Family: General Motors / Chevrolet LS3 6.2L V8 (Stock Output Configuration)
Application Fitment Note:
While structurally engineered to optimize the acoustics of the LS3 engine family (frequently found in factory platforms like the 2008-2013 Corvette and 2010-2015 Camaro), this CrateMuffler is a specialized directional component. It is intended for custom exhaust system fabrication, restomods, and crate engine projects. Fabricators must verify dimensional clearance, mounting placement, and hanger configuration prior to cutting or welding.
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