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This universal Borla performance muffler is selected by exact manufacturer part number 400823. Confirm every inlet, outlet, body, offset, clearance, finish, and fabrication requirement against the Borla drawing before ordering.
Key Features
- T-304 Stainless Steel: Premium material resists corrosion, withstands extreme heat, ensures lifelong performance and durability.
- Directional Design: Flow-optimized with outlet identified by welded mounting bracket endcap, custom sound for each engine family.
- Exact Specifications: 14" body length x 4.35" height x 9.1" width, 19" overall length, 2.5" inlet/outlet diameter for seamless 2.5" piping integration.
- ATAK Sound Technology: Aggressive tone tuned for SBC engines, dramatically reduces drone for clear, powerful soundtrack on acceleration.
- Orient with offset inlet toward engine, offset outlet toward exhaust system; follow directional flow.
- Pioneer in stainless steel exhaust with decades of motorsport victories.
Fitment
| Fitment Basis | Universal by exact dimensions, exhaust-system interface, and intended function |
|---|---|
| Required Verification | Confirm inlet, outlet, body dimensions, offset, clearance, material, finish, and fabrication requirements |
Specifications
| Manufacturer | Borla |
|---|---|
| Manufacturer Part Number | 400823 |
| Product Type | Muffler |
| Inlet or Outlet Size | 2.5 inch, 14in, 4.35in, 9in |
| Fitment Type | Universal by exact dimensions and exhaust-system interface |
What's Included
One new Borla product identified by manufacturer part number 400823. Clamps, hangers, gaskets, tips, pipes, tools, and companion parts are included only when expressly listed for this exact part number.
About Borla
Borla develops stainless-steel exhaust systems, mufflers, tips, pipes, and related components for vehicle-specific and universal performance applications. Product selection remains exact-application and exact-part-number specific.
Related Borla Products
- Borla CrateMuffler SBC Hot 350/383 2.5 inch Offset/Center 14in x 4.35in x 9in Oval Atak Muffler
- Borla CrateMuffler BBC 396/402/427 ATAK 2.5 inch ID Offset/Center 14in x 4.35in x 9in Oval Muffler
- Borla CrateMuffler SBC Hot 350/383 3 inch Offset/Center 14in x 4.35in x 9in Oval Muffler
Browse the Borla collection for related exhaust systems and components.
Frequently Asked Questions
How do I confirm this universal Borla part will fit?
Match the inlet and outlet diameter, body dimensions, flow direction, offset or center layout, available clearance, material, finish, and required fabrication to the exact Borla drawing before ordering.
Will this change require an engine tune?
A cat-back, axle-back, tip, muffler, or post-catalyst component usually does not require tuning, but confirm the exact application, emissions configuration, oxygen-sensor locations, and local requirements before installation.
What should I inspect before installation?
Check the shipping carton and components against the exact part number, then inspect clamps, hangers, gaskets, mating flanges, clearances, tip alignment, and required reused factory hardware before removing the original exhaust.
Installation Instructions
Follow the current Borla instructions and vehicle service information for this exact part number. Let the exhaust cool, support the vehicle safely, compare all parts before removal, protect sensors and wiring, use the specified clamps and torque values, align all joints and tips without preload, confirm body and suspension clearance, check for leaks, and retorque after the first heat cycles. Professional installation is recommended.
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