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Borla XR-1 Racing Mufflers
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XR-1 Racing Mufflers are the choice of today's hottest drag and oval track racers. With a patented straight-through design and multicore technology, XR-1 Mufflers actually outflowed a straight pipe in repeated testing. XR-1 Race Products are made of quality austenitic stainless steel for track-tough durability. They use sound-absorbing stainless steel packing to prevent burnout and meet the strictest noise requirements. Hands down, Borla's XR-1 Series offers the best balance of sound and power. Made in the USA!
Straight-through design for maximum flow
Austenitic stainless steel for reduced weight
Welded 1-piece construction for improved integrity
Sound-absorbing stainless steel guards against burnout