Description
XR-1® Multi-Core Racing Muffler Full Bodied Cars – 4″ Center Inlet/ 4″ Center Outlet 5.5″ x 8.5″ Oval 23″ Long Body 28″ Overall Length. Universal Part. Reversible Design. XR-1® Multi-Core Racing Muffler. 4″ Center Inlet/ 4″ Center Outlet 6.25″ Round x 23″ Long Body 28″ Overall Length. Long body design works well on SUV & truck applications but can be used on a wide range of vehicles including rotary engine equipped vehicles. It features BORLA®’S patented Multi-Core 6 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. 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 T-304 stainless steel wool packing 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.
- Long body design works well on SUV & truck applications
- Can be used on a wide range of vehicles including rotary engine equipped vehicles
- 4″ Center Inlet/ 4″ Center Outlet 5.5″ x 8.5″ Oval x 23″ Long Body 28″ Overall Length
- Multi-Core 6 tube internal design. High temperature SS wool for sound control
- Universal muffler. Reversible design.
Application Summary:
| Year | Make/Model |
|---|---|
| XR-1? | Multi-Core Racing Muffler For Full Bodied Cars – 4″ Center Inlet/ 4″ Center Outlet 5.5″ x 8.5″ Oval 23″ Long Body 28″ Overall Length. Universal Part. Reversible Design. |






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