
Specifications
- Brand
- Borla
- Part #
- 400851
- UPC
- 808422008518

Borla Big Block Chevrolet 396/402/427 2.5in Offset Inlet / 2.5in Center Outlet Crate Muffler
$365.99
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Borla 400851 Crate Muffler for Big Block Chevrolet 396/402/427 V8. Tuned for custom engines, it reduces drone and improves sound.
Key Features
- This product is a Borla CrateMuffler for Big Block Chevrolet 396/402/427 V8 engines.
- The muffler has a directional flow, identified by a mounting bracket on the outlet endcap.
- It is tuned for specific engine families to reduce or eliminate drone.
- Constructed from T-304 stainless steel for durability and performance.
- Features a 2.5-inch offset inlet and a 2.5-inch center outlet.
- Backed by Borla's Million-Mile Warranty.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
What you get here is a Borla CrateMuffler, specifically designed for Big Block Chevrolet engines like the 396, 402, and 427 V8s. This isn't just any muffler; it's built to optimize the sound and power of crate engines or custom builds. It features a directional flow, which you can spot by the mounting bracket welded to the endcap, and this design is key to tuning the sound for your specific engine family, helping to dramatically reduce or eliminate annoying drone.
Borla builds these CrateMufflers from T-304 stainless steel, which is a well-built material that stands up to performance use and lasts a long time, offering better corrosion resistance than T-400 series steel. The manufacturing process uses precision CNC machining to ensure it fits right where you need it. Borla backs this muffler with a Million-Mile Warranty, showing their confidence in its durability and performance.
This muffler is tuned for specific engines, and you can even add their 400938 resonator to achieve a Touring sound level if you're looking for a specific tone. It's a solid option for anyone looking to get the best sound and performance out of their Big Block Chevy crate engine.
Specifications
- Brand
- Borla
- Manufacturer Part #
- 400851
- UPC
- 808422008518
Frequently Asked Questions
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Borla Big Block Chevrolet 396/402/427 2.5in Offset Inlet / 2.5in Center Outlet Crate Muffler
