SKU: 400482 | UPC: 808422004824
Borla ProXS Muffler 3in Offset Inlet/ 3in Center Outlet 4in x 9.5in Oval x 14in Long Body Notched Necks #400482
The Borla 400482 ProXS Muffler delivers aggressive exhaust flow for custom applications across trucks, cars, off-road vehicles and racing builds. This universal oval muffler boosts horsepower and torque while enhancing fuel economy and providing the iconic Borla Sound of Power. Reversible design and notched necks ensure straightforward clamp-on setup for any performance exhaust project.
Key Features
- Reversible Design: Offset inlet/center outlet configuration flips for left- or right-side routing, maximizing install flexibility in tight spaces.
- T-304 Austenitic Stainless Steel: Premium rustproof material withstands extreme heat and corrosion for lifelong durability.
- 100% Welded Construction: Seamless build handles high-pressure exhaust pulses without leaks or failure.
- Free-Flow Internal Design: Mandrel-bent paths reduce backpressure for measurable gains in power, torque and throttle response.
- CFF Acoustic Core: High-temp continuous-filament fiber tunes deep, resonant tone with controlled volume for track or street.
Product Notes
- Notched necks simplify clamp-on fit without cutting or welding.
- Mill finish allows brushing or polishing to match vehicle aesthetics.
- 7 lbs weight keeps systems lightweight; ships in 20x10x5 inch box.
Installation Notes
- Professional installation recommended.
- Uses standard 3in clamps on notched necks for secure slip-fit connection.
- Check ground clearance and heat shielding for custom routing.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Custom Exhaust | Trucks, Cars, Off-Road, Racing |
Why Choose Borla?
- Decades as leader in stainless steel exhaust for street and motorsport.
- Engineered for power gains, efficiency and thrilling exhaust note.
- USA-made with Million-Mile warranty covering defects and corrosion.
Frequently Asked Questions
-
Q: Does the 400482 fit specific vehicles?
A: Universal design suits custom 3in exhaust on most trucks, muscle cars, Jeeps and race vehicles; measure for body height/width clearance. -
Q: What material and finish does it have?
A: T-304 stainless steel in natural mill finish; polish or brush for custom look, resists rust in all conditions. -
Q: What warranty applies?
A: Million-Mile limited warranty protects against manufacturing defects when installed properly.
Shipping & Handling
- Method: Ground shipping via UPS/FedEx
- Availability: In stock - ships same or next business day
- Packaging: Secure Borla box, 20in x 10in x 5in dimensions
- Weight: 7 lbs

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