{"product_id":"borla-proxs-muffler-400287-2-25-inch-dual-inlet-and-outlet-oval-stainless-steel","title":"Borla ProXS Muffler 400287, 2.25-Inch Dual Inlet and Outlet, Oval Stainless Steel","description":"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.\nProXS Muffler 2.25\" Dual Inlet\/ 2.25\" Dual Outlet, 4\" x 9.5\" Oval, 19\" Long Body, 24\" Overall Length. Internal X-Pipe. Universal Part. Reversible Design.\nMillion Mile Warranty\n\u003cul\u003e\n  \u003cli\u003eUn-Notched necks are designed for weld in installation. If clamping, use 3\" wide band clamps 18003.\u003c\/li\u003e\n  \u003cli\u003eUniversal muffler. Reversible design. Dual Inlet, dual outlet. Contains an internal X-Pipe.\u003c\/li\u003e\n  \u003cli\u003e2.25\" Dual Inlet\/ 2.25\" Dual Outlet, 4\" x 9.5\" Oval, 19\" Long Body, 24\" Overall Length\u003c\/li\u003e\n  \u003cli\u003eAlternate muffler with Notched necks is 400492. Use 1\" wide band clamps 18322.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Borla ProXS Muffler 400287 is a universal performance muffler designed for custom exhaust systems and weld-in installations. It features dual 2.25-inch inlets and dual 2.25-inch outlets in a reversible oval configuration, providing flexible positioning during installation. The un-notched necks are intended for welding; if clamping is preferred, Borla recommends using 3-inch-wide band clamps, such as part number 18003, which are sold separately.\u003c\/p\u003e\n\u003cp\u003eAn internal X-pipe helps improve exhaust flow, performance, and sound quality, while the free-flow design supports efficient engine breathing. Constructed from T-304 stainless steel, the Borla ProXS offers excellent corrosion resistance and long-term durability. Its fully welded construction provides structural strength, and high-temperature continuous-filament fiber acoustic material helps control sound without restricting exhaust flow. The natural mill finish may be brushed or polished before installation for a customized appearance.\u003c\/p\u003e\n\u003cp\u003eThis Borla muffler uses a reversible design for installation flexibility and is manufactured in the USA. It is backed by Borla's Million-Mile Warranty, reflecting the brand's focus on durable, high-performance exhaust components. The muffler is universal and not vehicle-specific, so custom fitment, exhaust routing, and final installation should be confirmed before purchase. For an alternative version with notched necks, see Borla part number 400492, which uses 1-inch-wide band clamps such as part number 18322.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrief Description:\u003c\/strong\u003e Universal Borla ProXS performance muffler with dual 2.25-inch inlets and outlets, internal X-pipe, reversible design, and T-304 stainless steel construction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e One Borla ProXS muffler. Clamps and installation hardware are not included.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eInternal X-Pipe: Helps improve exhaust flow, engine performance, and exhaust sound quality.\u003c\/li\u003e\n\u003cli\u003eReversible Design: Allows flexible orientation during custom exhaust installation.\u003c\/li\u003e\n\u003cli\u003eT-304 Stainless Steel Construction: Provides strong corrosion resistance and durable service life.\u003c\/li\u003e\n\u003cli\u003eFree-Flow Performance: Supports efficient exhaust flow while high-temperature acoustic fiber helps control sound.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"Borla","offers":[{"title":"Default Title","offer_id":67595627036924,"sku":"400287","price":267.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/a7a85da24eeab632c3d1da2f2d474c12.jpg?v=1790571048","url":"https:\/\/diycustoms.store\/products\/borla-proxs-muffler-400287-2-25-inch-dual-inlet-and-outlet-oval-stainless-steel","provider":"diycustoms.store","version":"1.0","type":"link"}