Borla Universal XR-1 Multi-Core Racing Muffler 40741
Borla Universal XR-1 Multi-Core Racing Muffler 40741
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- Ships direct from the brand or supplier
- Tracking emailed when it ships
- Free fitment check before you order
BOR XR-1 Mufflers
Exhaust Muffler
XR-1? Multi-Core Racing Muffler For Venues Requiring A Muffler - 4" Center Inlet/ 4" Center Outlet 6.25" Round x 16" Long Body 21" Overall Length. Universal Part. Reversible Design.
Million Mile Warranty
BORLA XR-1 Raceline products are the choice of todays hottest drag and oval track racers. Featuring a patented uninerrupted-flow design and multicore technology. BORLAs XR-1 mufflers actually outflow a straight piece of pipe in repeated testing. XR-1 race products are light weight and constructed of high quality austenitic stainless steel for track-tough durability. They meet the strictest noice requirements and use sound absorbing stainless steel pcking to protect against burnout. Hands down, BORLAs XR-1 Raceline offers the best balance of sound and power.
XR-1 Stainless Multicore Racing Mufflers.

Before you order: fitment and what to plan
Exhaust parts carry gases away from the engine, quiet the sound and clean up emissions.
Fitment notes
- Specs, lead time and warranty come from the manufacturer and supplier and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentPlan the whole job
- Clamps and hangers. Old hardware is usually rusted.
- Gaskets. New gaskets prevent leaks at each joint.
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