Borla · New
Borla Universal Center/Dual Oval 3in In / 2.5in Out 19in x 4in x 9.5in Notched PRO-XS Muffler
MPN 400487 · Store SKU bor400487
Supplier stock checked 11/7/2026, 10:42:21 AM UTC. Adding a part does not reserve it.
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Product details
ProXS Muffler 3" Center Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Notched necks for easy clamp-on installation using 1" wide band style clamps using 1) 18330 and 2) 18325 (clamps not included). Reversible design for installation flexibility. This muffler is generally used in a system that has a single inlet and dual outlets, but it can also be installed in a system with dual inlets and a single outlet. High quality T-304 austenitic 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. Alternate muffler with Un-Notched necks is 40349. If clamping, use band clamps 18004 & 18006.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. Value-priced BORLA® ProXS mufflers share many of the hottest features of our performanceline. Including high-quality 300 Series austenitic stainless steel construction, streetcommandingsound and our Million Mile Warranty. Sizes are available for import anddomestic cars and trucks. ProXS Muffler 3" Center Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Universal Part. Reversible Design. Notched Necks. ProXS Muffler - Notched Neck Borla® Pro XS Muffler
Manufacturer fitment & guides
Check 400487 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y