XR-1 Multi-Core

XR-1(r) Multi-Core Racing Muffler. 2.5" Center Inlet/ 2.5" Center Outlet 4" Round x 14" Long Body 19" 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(r)'S patented Multi-Core 3 tube design for maximum flow, horsepower, and torque. The Multi-Core portion of XR-1(r) mufflers flows better than straight tubing. Recommend for high horsepower applications. Reversible design for installation flexibility. T-304 Stainless steel for superior corrosion resistance. 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.

Additional Information

XR-1 Multi-Core Muffler Racing Muffler - 2.5" Center Inlet/ 2.5" Center Outlet 4" Round x 14" Long Body 19" Overall Length. Universal Part. Reversible Design.

Part Type

Exhaust Muffler

Product Overview

The compact diameter of these mufflers make them great for both classic and late model cars with ground clearance issues. Sound is attenuated with the Borla patented Multicore design and high-temperature continuous-filament fiber (CFF) acoustic material, without losing any horsepower or torque. 100% welded construction for strength. Built with T-304 stainless steel they have unequaled durability and great looks that you can polish to a mirror like finish if desired. 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.

• 2.5" Center Inlet/ 2.5" Center Outlet 4" Round x 14" Long Body 19" Overall Length
• Can be used on a wide range of vehicles. Sometimes referred to as a 'Hot Rod' muffler.
• Compact 4" diameter muffler body is perfect for applications with limited space
• Multi-Core 3 tube internal design
• Universal muffler. Revesible design.

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Product Details

Reference Information

MUFFLER MULTICORE 2.5" IN/OUT 4" RDX 14"