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SKU: 400844 | UPC: 808422008440
Borla CrateMuffler Muffler Chevrolet Small Block 350/383/406 CID V8 High Output 3 in. Offset Inlet/ 3 in. Center Outlet ATAK Part # 400844
The Borla 400844 CrateMuffler is the first muffler designed specifically for Small Block Chevrolet High Output 350/383/406 CID V8 crate and custom engines. This 14" x 4.35" x 9.10" oval muffler with 3-inch offset inlet and center outlet delivers aggressive ATAK sound, increased power, torque gains, better fuel economy, and reduced drone. Built for custom hot rod and performance builds using these GM crate engines.
Key Features
- ATAK Sound: Aggressive exhaust note tuned for Small Block Chevy 350/383/406 V8, eliminates drone on direct applications for thrilling throttle response.
- T-304 Stainless Steel: Premium material resists corrosion, withstands high heat, delivers lasting performance over T-400 series steels.
- Directional Design: Outlet marked by welded bracket on endcap; optimizes flow and sound for SBC engine family.
- CNC Precision Manufacturing: Ensures exact fit, 19-inch overall length, 3-inch pipe connections for seamless integration.
- Million-Mile Warranty: Lifetime coverage reflects Borla engineering for endurance in street and track use.
Product Notes
- Muffler is directional; position outlet (bracket side) toward rear of vehicle for correct sound tuning.
- All-welded construction with OEM-style inlet/outlet for direct bolt-on to 3-inch piping.
- Packaged for protection; weighs 8 lbs with body height/width matching OEM small block setups.
Installation Notes
- Professional installation recommended.
- Align offset inlet to exhaust path; center outlet simplifies routing under chassis.
- Compatible with standard hangers and clamps; no special hardware required.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | Chevrolet | Small Block V8 | 350/383/406 CID High Output Crate Engines |
| 1955+ | Chevrolet | Custom/Restomod | w/ SBC 350/383/406 Crate |
| 1964-1987 | Chevrolet | Chevelle | w/ SBC Crate Swap |
| 1967-2002 | Chevrolet | Camaro | w/ SBC Crate Swap |
| 1968-1982 | Chevrolet | Corvette | w/ SBC Crate Swap |
Why Choose Borla?
- Pioneer in stainless steel exhaust since 1978, starting with classics like Ferrari and Rolls-Royce.
- Most experienced exhaust brand with proven wins in racing and street performance.
- Focuses on power, sound, and durability with T-304 steel and exact CNC engineering.
Frequently Asked Questions
-
Q: Which engines fit the Borla 400844 CrateMuffler?
A: Designed for Small Block Chevrolet High Output 350/383/406 CID V8 crate engines like GM PN 19417413 HOT 350/383; ideal for custom swaps in hot rods, muscle cars. -
Q: What material and body specs?
A: T-304 stainless steel oval body 14" long x 4.35" high x 9.10" wide; 19" overall length, 3" inlet/ outlet diameters. -
Q: What warranty and sound level?
A: Million-Mile Warranty covers defects; ATAK provides loud, aggressive tone without interior drone when installed directionally.
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Secure Borla box, 20.75" L x 9.75" W x 5.75" H
- Weight: 8 lbs
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