Borla · New
Borla Universal Pro-XS Oval 2.25in Inlet / Outlet Offset Notched Muffler
MPN 400489 · Store SKU bor400489
Supplier stock checked 11/7/2026, 5:03:58 PM UTC. Adding a part does not reserve it.
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Product details
ProXS Muffler 2.25" Offset Inlet/ 2.25" Offset Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Notched necks for easy clamp-on installation using 1" wide band style clamps 18322 (clamps not included). Reversible design for installation flexibility. 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. 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 2.25" Offset Inlet/ 2.25" Offset Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design. Notched Necks. ProXS Muffler - Notched Neck Borla® Pro XS Muffler
Manufacturer fitment & guides
Check 400489 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
