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Borla’s XR-1 Muffler is a race-level product designed to deliver maximum performance, sound, and flow. Best suited for oval track or drag racing, the XR-1 is no polite introvert. The sound will wake you up. But it’ still street legal and uses Borla’s Multi-Core design to maximize the note while minimizing resonant vibration. You can count on build quality, too, since Borla backs the XR-1 with their standard, million mile warranty. Every example has been fully welded, rather than crimped, and is made from aircraft-grade, austenitic stainless steel, through and through.
Free FedEx ground shipping on all orders over $100. Free shipping to 48 Continental United States only. Orders under $100 will incur a FedEx ground shipping charge of $9.95.
$9.95 Per Wheel/$25 Per Tire
Each wheel will incur a $9.95 per wheel fee and each tire will incur a $25 per tire fee up to $129. You will be charged a maximum of $129 regardless of how many wheels and/or tires you purchase.
$129 Truck Freight
Oversized parts will incur a $129 truck freight charge that FedEx cannot provide standard ground shipping on.