Product details

XR-1(r) Multi-Core Bullet Racing Muffler. 2.5" Center Inlet/ 2.5" Center Outlet (no neck) 3.5" Round x 14" Long Body 16.75" Overall Length. Designed for use on compact applications where no tail pipe or turn down is needed, or weld on your own tail pipe or turn down. Can be used on vehicles with rotary engines. 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. T-304 Stainless steel for superior corrosion resistance. 100% welded construction for strength. high temperature T-304 stainless steel wool for sound control. There is no BORLA(r) logo embossment on this part. 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. Our aircraft-quality high quality austenitic stainless steel bullet-shaped muffler is another proven race winner. This extremely compact multi-core XR-1 muffler is used for everything from hot street cars to street rods. They fit in very constrictive areas. XR-1 Multi-Core Bullet Racing Muffler - 2.5" Center Inlet/ 2.5" Center Outlet (no neck) 3.5" Round x 14" Long Body 16.75" Overall Length. Universal Part. XR-1® Stainless Racing Bullet Mufflers XR-1 Multicore Bullet Muffler

Manufacturer fitment & guides

Check 40641 against the manufacturer’s application information below.

• Borla manufacturer vehicle catalog ↗

Part-specific notes

• California Proposition 65: Y