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SKU: 400843 | UPC: 808422008433
Borla CrateMuffler Chevrolet Small Block High Output 350/383/406 CID 3in Offset/Center 14inx4.35inx9.10in S-Type Part # 400843
Borla 400843 CrateMuffler is the first muffler designed specifically for Small Block Chevrolet high output 350/383/406 CID V8 crate and custom engines. It installs on offset 3-inch inlet to center 3-inch outlet configurations for oval-shaped bodies measuring 14 inches long overall 19 inches. Expect gains in power, torque, fuel economy, and a signature Borla sound that eliminates drone while enhancing throttle response.
Key Features
- T-304 Stainless Steel Construction: Provides corrosion resistance and durability for long-term performance in high-heat exhaust environments.
- Directional Design: Outlet side marked by welded mounting bracket ensures proper flow orientation for engine-specific tuning and reduced interior drone.
- Precise Dimensions: 14-inch body length, 4.35-inch height, 9.1-inch width, 19-inch overall length with 3-inch inlet/outlet for seamless integration into custom exhaust setups.
- Chambered S-Type Internal Design: Produces deep, aggressive exhaust note matched to SBC high output V8 characteristics for thrilling acceleration sound.
- Million-Mile Warranty: Backed by Borla's proven reliability, ensuring peace of mind for street, track, or off-road use.
Product Notes
- Mufflers are directional; install with outlet end (mounting bracket) facing rear of vehicle.
- Built for high-flow applications; pairs with 3-inch piping for optimal results.
- Weight: 8.1 lbs; securely packaged in protective box measuring 21 x 10 x 6 inches.
Installation Notes
- Professional installation recommended.
- Clamp or weld to 3-inch exhaust piping; verify inlet offset and center outlet alignment.
- Includes mounting bracket on outlet endcap for direct bolting to hangers.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | Chevrolet | Small Block V8 | 350/383/406 CID High Output Crate Engine |
Why Choose Borla?
- Leaders in stainless steel exhaust since pioneering systems for classics like Ferrari and Rolls-Royce.
- Most experienced exhaust brand with championship-winning designs across street and racing.
- CNC precision manufacturing guarantees exact fit and peak flow for every CrateMuffler.
Frequently Asked Questions
-
Q: Does this fit my SBC 383 stroker crate engine?
A: Yes, designed specifically for Small Block Chevy high output 350/383/406 CID V8 crate and custom motors with 3-inch offset inlet to center outlet. -
Q: What material is used and why?
A: T-304 stainless steel, which offers better corrosion resistance and strength than 409 or other 400-series steels in exhaust applications. -
Q: What warranty coverage applies?
A: Million-Mile Warranty covers defects in materials and workmanship when installed and maintained properly.
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Individual protective box, 21 x 10 x 6 inches
- Weight: 8.1 lbs
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