The Borla CrateMuffler for the Chevrolet LS3 is purpose-built to optimize the sound and power of crate and custom-built engines. It is tuned specifically for the LS3 6.2L V8 family and delivers an aggressive ATAK sound while dramatically reducing or eliminating drone on cataloged applications. It uses Borla's Polyphonic Harmonizer Technology, with patented units containing pipes of different diameters and lengths that create multiple exhaust notes harmonizing into a clean, rich, full-bodied tone. The muffler is directional, and the outlet is identified by the mounting bracket welded to the end cap. It is built from premium T-304 stainless steel, which outperforms T-400 series alloys such as 409, and is precision CNC manufactured for an accurate fit. It is made in the USA and backed by Borla's Million-Mile Warranty.
Specifications:
- Type: Directional crate-engine muffler, weld-in
- Engine tuning: Chevrolet LS3 6.2L V8
- Sound level: ATAK
- Technology: Polyphonic Harmonizer
- Inlet/Outlet: 3in offset inlet / 3in offset outlet
- Body: 6in x 10.34in oval, 14in long body
- Overall length: 19in
- Material: T-304 stainless steel
- Construction: CNC manufactured, 100% welded
- Made in the USA
- Part number: 400960
FAQ
What engine is the Borla 400960 CrateMuffler tuned for?
It is tuned for the Chevrolet LS3 6.2L V8 engine family and is engineered to optimize sound and power on crate and custom-built LS3 engines.
How aggressive is the ATAK sound level?
ATAK is Borla's most aggressive sound tier. This muffler uses Polyphonic Harmonizer Technology to blend multiple exhaust notes into a clean, rich, full-bodied tone.
What is the inlet and outlet configuration?
It has a 3in offset inlet and a 3in offset outlet on a 6in x 10.34in oval body that is 14in long with a 19in overall length.
Is this muffler legal for street use?
It is a universal weld-in muffler sold as a component. Emissions legality depends on the complete exhaust system and the application it is installed on, so buyers should confirm the requirements for their specific vehicle and local regulations.
Where is it made and is it warrantied?
It is made in the USA and backed by Borla's Million-Mile Warranty.
