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SKU: 400286 | UPC: 808422002868
Borla ProXS Muffler 2.5in Dual Inlet/ 2.5in Dual Outlet 4in x 9.5in Oval x 19in Long Body 400286
Borla 400286 ProXS muffler delivers aggressive exhaust tone and performance gains for custom setups on cars, trucks, and SUVs. This universal 2.5-inch dual inlet/dual outlet design with internal X-pipe enhances flow, power, torque, and fuel efficiency while reducing weight. Reversible construction fits left- or right-side installs in tight spaces.
Key Features
- Internal X-Pipe: Balances exhaust pulses for smoother flow, sharper sound, and measurable horsepower/torque increases across RPM range.
- T-304 Stainless Steel: Corrosion-resistant material ensures lifelong durability in harsh conditions without rust or degradation.
- Reversible Design: Mounts in any orientation for easy adaptation to various chassis layouts and exhaust routing.
- Free-Flow Mandrel-Bent Design: Reduces backpressure for quicker throttle response, better scavenging, and improved engine breathing.
- CFF Acoustic Core: High-temperature fiber packing controls drone while amplifying deep Borla rumble for track or street driving.
Product Notes
- Universal fit for 2.5-inch piping; pair with Borla clamps and hangers for complete system.
- Mill finish allows custom polishing or painting before install.
- Single muffler unit; overall length 24 inches including necks.
Installation Notes
- Professional installation recommended.
- Slide-fit pipe connections; use Borla stainless clamps (sold separately) for secure seal.
- Compatible with standard exhaust hangers; reversible for center or offset positioning.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | All | Custom Exhaust - 2.5" Piping |
Why Choose Borla?
- Leaders in stainless steel exhaust since 1978, starting with Ferrari and Rolls-Royce systems.
- All-welded construction and Million-Mile warranty guarantee reliability.
- Proven on street, off-road, and racing circuits worldwide.
Frequently Asked Questions
-
Q: Will this muffler fit my vehicle's exhaust?
A: Designed as universal for 2.5-inch dual pipe systems; measure your inlet/outlet and space (19-inch body length fits most). -
Q: What material is used and does it rust?
A: T-304 stainless steel provides rust-proof performance with 100% welded seams for maximum strength. -
Q: What warranty covers this muffler?
A: Backed by Borla's Million-Mile warranty against defects when installed and maintained properly.
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective cardboard box, approx. 25in x 12in x 6in
- Weight: 12 lbs
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