XR-1® Multi-Core Racing Muffler. 2.5″ Center Inlet/ 2.5″ Center Outlet 4″ Round x 12″ Long Body 17″ Overall Length. Compact 4″ diameter muffler body is perfect for applications with limited space and can be used on a wide range of vehicles. This muffler is sometimes referred to as a ‘Hot Rod’ muffler. It features BORLA®’S patented Multi-Core 3 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 dsign for installation flexibility. T-304 Stainless steel will never rust. Natural mill finish can be brushed or polished prior to installation. 100% welded construction for strength. High-temperature continuous-filament fiber (CRF) acoustic material for sound control. Best of all, it’s made in the USA. Just what you’d expect from the world’s most experienced (and most winning) exhaust brand.\nXR-1® Multi-Core Muffler Racing Muffler – 2.5″ Center Inlet/ 2.5″ Center Outlet 4″ Round x 12″ Long Body 17″ Overall Length. Universal Part. Reversible Design.\n

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• Can be used on a wide range of vehicles. Sometimes referred to as a ‘Hot Rod’ muffler.

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• 2.5″ Center Inlet/ 2.5″ Center Outlet 4″ Round x 12″ Long Body 17″ Overall Length

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• Compact 4″ diameter muffler body is perfect for applications with limited space

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• Universal muffler. Reversible design.

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• Multi-Core 3 tube internal design

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