Find Parts That Fit
Borla 2.25in Dual In/Out 19in x 9.5in x 4in Turbo XL Muffler
$267.99
Not sure it fits? Ask our fitment team — we check before it ships.
$267.99
$267.99
Tech Specs
- Brand
- Borla
- SKU
- BOR400287
- Manufacturer part number
- 400287
- Category
- Exhaust- Mufflers & Tips › Muffler
- Shipping weight
- 13.3 lb
- Availability
- Stocked
- EPA
- N/A
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
ProXS Muffler 2.25" Dual Inlet/ 2.25" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Un-Notched necks are designed for weld in installation. If clamping, use 3" wide band clamps 18003 (clamps not included). This muffler features an internal X-Pipe for increased performance and improved sound. Reversible design for installation flexibility. T-304 Stainless steel for superior corrosion resistance. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Best of all, it's made in the USA and backed by BORLA(r)'s Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.
- Un-Notched necks are designed for weld in installation. If clamping, use 3" wide band clamps 18003.
- Universal muffler. Reversible design. Dual Inlet, dual outlet. Contains an internal X-Pipe.
- 2.25" Dual Inlet/ 2.25" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length
- Alternate muffler with Notched necks is 400492. Use 1" wide band clamps 18322.
Related Tech Articles
How to Choose a Big Brake Kit Without Overbuying
A big brake kit doesn't shorten your stopping distance — tires do. What it actually buys is heat capacity and pedal consistency. How to choose rotor diameter, piston area and pad compound, and when fluid and pads are the smarter spend.
Where Exhaust Power Actually Comes From
Almost every cat-back horsepower claim online is unsourced. Here's what an independent dyno test actually measured, why scavenging lives in the headers and not the cat-back, and where the power really is on a turbo car.
Coilovers vs Lowering Springs: How to Actually Decide
Both lower the car — but the decision is really about the damper. Why stock dampers and aftermarket spring rates fight each other, when springs are genuinely the right call, and what each path costs you beyond the parts.
- Choosing a selection results in a full page refresh.
- Opens in a new window.