Product details

XR-1(r) Multi-Core Slim Line Racing Muffler. The Center Inlet / Center Outlet necks are 3.5" tubing formed into a 4.13" x 2.61" Oval. The body is a 3" High x 7.88" Wide Oval, 12" Long with a 17" Overall Length. Designed for high horsepower applications in low profile vehicles with limited space including vehicles with rotary engines. It features BORLA(r)'S patented Multi-Core 2 tube design for maximum flow, horsepower, and torque. The Multi-Core portion of XR-1(r) mufflers flows better than straight tubing. 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 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. Made from aircraft-quality high quality austenitic stainless steel and BORLA XR-1 Raceline Exhaust Technology. This unique, durable race muffler uses oval tubing and incorporates a slim profile for maximum ground clearance while maintaining significant sound attenuation. The choice of champions of the Hooters ProCup Stock Car Series. BORLA-powered cars have dominated this series since being allowed in. Recommended by winning race teams and top Hooters Series engine builders alike. XR-1 Multi-Core Slim Line Racing Muffler - 3.5" Oval Pipe Center Inlet/ 3.5" Oval Pipe Center Outlet 3" x 7.88 Oval x 12" Long Body 17" Overall Length. Universal Part. Reversible Design. XR-1® Stainless Hooters Series Slim Line Muffler XR-1 Multicore Muffler

Manufacturer fitment & guides

Check 40536 against the manufacturer’s application information below.

• Borla manufacturer vehicle catalog ↗

Part-specific notes

• California Proposition 65: Y