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SKU: 40474 | UPC: 808422404747
Borla 40474 Universal Oval Transverse Single 3" Inlet / 2.5" Dual Offset Outlets Muffler 5.5" x 10.25" x 19" Body
The Borla 40474 specialty transverse flow muffler delivers aggressive exhaust tone and performance gains for custom systems on any vehicle, originally engineered for GM F-Body Camaro and Firebird applications mounted parallel to the rear axle. This reversible universal design features a 3" offset inlet on one end with dual 2.5" offset outlets for versatile routing. Expect gains in horsepower, torque, fuel efficiency, and the signature Borla Sound of Power that excites with every throttle pull.
Key Features
- Transverse Flow Design: Flows parallel to the axle for compact fit behind rear ends; ideal for F-Body Camaros/Firebirds or custom builds on trucks, muscle cars, and more.
- Precise Dimensions: 5.5in height x 10.25in width x 19in body length (24in overall); compact oval shape fits tight spaces without sacrificing flow.
- T-304 Stainless Steel: Corrosion-resistant material ensures lifelong durability; natural mill finish polishes to a mirror shine.
- 100% Welded Construction: Mandrel-bent for unrestricted flow; high-temperature CFF acoustic core tames drone while amplifying deep rumble.
- Reversible Single Inlet/Dual Outlet: 3in offset inlet pairs with one 2.5in outlet on entry end, second 2.5in on exit end for easy adaptation to Y-pipes or splits.
Product Notes
- Un-notched necks require welding for secure install; band clamps 18004 & 18006 enable clamp-on if preferred.
- High-flow free-flow core extends engine life with reduced backpressure; pair with Borla piping for full system.
- Made in USA; ships in protective packaging to prevent damage.
Installation Notes
- Professional installation recommended.
- Un-notched pipes designed for TIG welding; use band clamps 18004 & 18006 for non-weld setups.
- Reversible orientation; compatible with 3in piping inlet and 2.5in outlets; mounts transversely behind axle.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | Chevrolet | Camaro | F-Body/Custom |
| Universal | Pontiac | Firebird | F-Body/Custom |
| Universal | All | Custom Exhaust | Any Vehicle |
Why Choose Borla?
- Decades as leader in stainless steel exhaust for street, off-road, and racing.
- Proven power increases, torque gains, and fuel economy from patented flow technology.
- Million-Mile warranty backs every component for total confidence.
Frequently Asked Questions
-
Q: Does the Borla 40474 fit specific vehicles like Camaro or Firebird?
A: Universal design fits any custom exhaust; optimized for transverse mount on 1967-2002 GM F-Body Camaro/Firebird behind rear axle, but adaptable to trucks, imports, or muscle cars with 3in/2.5in piping. -
Q: What material is used and does it rust?
A: T-304 austenitic stainless steel construction resists rust completely; 100% welded with mill finish that brushes or polishes easily. -
Q: What warranty and install details apply?
A: Backed by Borla's Million-Mile warranty; un-notched necks weld in place, or clamp with 18004/18006; professional fab recommended for custom routing.
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Secure box, 26in x 12in x 8in dimensions
- Weight: 11.9 lbs product / 13.1 lbs shipping
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