# Borla 3 -1/2in In/Out x 5in Round x 8in Long XR-1 Sportsman Shorty Racing Muffler

High quality austenitic stainless steel. Patented, race-winning XR-1 Raceline technology. 3 options: Offset - Made with the same patented, flow through design as the XR-1 Sportsman oval. The inlet/outlet are offset to the same side of the muffler, to accommodate transmission and frame rail interference on some applications Oval -- BORLAs #1 selling racing muffler. Satisfies the needs of most racing applications because it is the lightest, most compact, and highest flowing racing muffler in its class and at a competitive price. Record-holder Hurley Blakeney has run BORLAs on his AA/AT Ford T-Bird because he loves the quieter driver compartment without giving up any power.Round - Made with the same patented, flow through design as the XR-1 Sportsman Oval. This Muffler is 5 inches in diameter and 15 inches long. Designed for door car/ roadster applications that require a compact round muffler.

-   3.5" Center Inlet/ 3.5" Center Outlet 5" Round x 8" Long Body 13" Overall Length
-   Compact size is perfect for applications with limited space
-   Un-Notched necks are designed for weld in installation
-   There is no logo embossment on this part
-   Universal muffler. Reversible design.

## Details

- **Price:** 273.97 CAD
- **Vendor:** Borla
- **Type:** Muffler

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 273.97 CAD | In stock |

## Images

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/borla-3-1-2in-in-out-x-5in-round-x-8in-long-xr-1-sportsman-shorty-racing-muffler)
> Updated: 2026-08-22