Borla XR-1 Multi-Core Racing Muffler - 3in Center/Center Oval - 5.5in x 8.5in x 34in Body

The Borla XR-1 Multi-Core is a long-body racing muffler with a 3in center inlet and 3in center outlet on a 5.5in x 8.5in oval body (34in body, 39.25in overall) with reinforcing ribs, designed for Pre-Runner trucks. Its patented Multi-Core 4-tube design flows better than straight tubing for maximum horsepower and torque. T-304 stainless with steel-wool packing, a reversible design and no logo embossment.

Specifications

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy