{"product_id":"xr-1-multicore-muffler-400374","title":"Borla XR-1 Multicore Muffler (400374)","description":"\u003cp\u003eThe Borla XR-1 Multicore racing muffler is a universal part with a 4-inch center inlet and 4-inch center outlet in a 6.25-inch round case with a 16-inch body and 21-inch overall length. It is listed for rotary-engine-equipped vehicles and has a reversible design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePart number:\u003c\/strong\u003e 400374\u003c\/p\u003e\u003cp\u003eBorla muffler.\u003c\/p\u003e\u003c!--mt-sema-20260914--\u003e\u003cp\u003eXR-1® Multi-Core Racing Muffler. It features BORLA®'S patented Multi-Core 4 tube design for maximum flow, horsepower, and torque. The Multi-Core portion of XR-1® mufflers flows better than straight tubing. Recommend for high horsepower applications. Reversible design for installation flexibility. 100% welded construction for strength. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. There is no BORLA® logo embossment on this part. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand.\u003c\/p\u003e\u003c!--\/mt-sema-20260914--\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Borla\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 400374\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e T-304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of manufacture:\u003c\/strong\u003e United States\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping carton:\u003c\/strong\u003e 8 × 8 × 32 in (20 × 20 × 81 cm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping weight:\u003c\/strong\u003e 6.4 kg (14 lb)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct dimensions:\u003c\/strong\u003e Length 21 in (53.3 cm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShape:\u003c\/strong\u003e Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall length:\u003c\/strong\u003e 21.000 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet type:\u003c\/strong\u003e Single Center Outlet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet outside diameter:\u003c\/strong\u003e 4.000 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody length:\u003c\/strong\u003e 16.000 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuffler count:\u003c\/strong\u003e 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain piping diameter:\u003c\/strong\u003e 4.000 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet type:\u003c\/strong\u003e Single Center\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInlet position:\u003c\/strong\u003e Center\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade type:\u003c\/strong\u003e Performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e All Welded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody width:\u003c\/strong\u003e 6.250 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody height:\u003c\/strong\u003e 6.250 in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet position:\u003c\/strong\u003e Center\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Borla","offers":[{"title":"Default Title","offer_id":48806554566848,"sku":"BRL400374","price":580.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0762\/4772\/8320\/files\/400374.jpg?v=1786726076","url":"https:\/\/mapletorque.ca\/products\/xr-1-multicore-muffler-400374","provider":"MapleTorque","version":"1.0","type":"link"}