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SKU: 400489 | UPC: 808422004893
Borla 400489 ProXS Muffler 2.25" Offset Inlet / 2.25" Offset Outlet 4" x 9.5" Oval 14" Body Notched Necks
This Borla ProXS universal muffler delivers the signature Borla Sound of Power while boosting horsepower, torque, fuel economy, and engine life on any vehicle with 2.25" exhaust piping. The reversible design and notched necks allow simple clamp-on installation for custom exhaust setups. Experience thrilling throttle response and a motorsport exhaust note with every drive.
Key Features
- Notched Necks: Enable secure clamp-on fit without welding for fast, flexible installs on 2.25" piping.
- Reversible Design: Allows inlet/outlet orientation swap for perfect routing in tight spaces or custom builds.
- T-304 Stainless Steel: Corrosion-resistant material ensures lasting durability in harsh conditions.
- 100% Welded Construction: Provides structural strength to handle high-performance demands.
- Free-Flow Design: Reduces backpressure for measurable gains in power and efficiency.
Product Notes
- Notched necks simplify clamp-on setup; use standard exhaust clamps.
- High-temperature CFF acoustic core controls sound without restricting flow.
- Ships in protective box; 7.8 lbs product weight.
Installation Notes
- Professional installation recommended.
- Clamp-on only; no cutting or welding required.
- Compatible with 2.25" exhaust clamps and hangers.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | Any | Any with 2.25" piping | Clamp-on applications |
Why Choose Borla?
- Leaders in stainless steel exhaust since 1978 for street, off-road, racing.
- Made in USA with Million-Mile warranty for proven reliability.
- Engineered for real-world power and the exhaust sound enthusiasts demand.
Frequently Asked Questions
-
Q: Does this fit my vehicle?
A: Yes, universal clamp-on design works on any exhaust with 2.25" piping; measure your system first. -
Q: What material is used?
A: T-304 austenitic stainless steel with natural mill finish, ready for polishing if desired. -
Q: What warranty applies?
A: Backed by Borla's Million-Mile warranty against defects when installed properly.
Shipping & Handling
- Method: Ground shipping via UPS or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Secure box dimensions 20" x 10" x 6"
- Weight: 7.8 lbs
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