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Borla XR-1 Racing Sportsman 3.5in. Outlet / 3.5in Inlet Oval Muffler - 5in Diameter x 15in Length

SKU: BOR40946

Mufflers

BOR XR-1 Mufflers

Borla XR-1 Racing Sportsman 3.5in. Outlet / 3.5in Inlet Oval Muffler - 5in Diameter x 15in Length

SKU: BOR40946

Mufflers

BOR XR-1 Mufflers

A$443.01
LOW STOCK! Est Ship 3-5 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

XR-1(r) Sportsman Racing Muffler. 3.5" Center Inlet/ 3.5" Center Outlet 4.25" x 7.88" Oval x 16" Long Body 21" Overall Length. Compact size is perfect for applications with limited space. Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel for superior corrosion resistance. 100% welded construction for strength. Free Flow design for improved performance. High-temperature continuous-filament fiber (CFF) acoustic material for sound control. Natural mill finish can be brushed or polished prior to installation. Hands down, BORLA(r)'s XR-1(r) raceline parts offer the best balance of sound and power. Best of all, it's made in the USA. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.

Product Overview

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.


Features and Benefits

  • Universal muffler. Reversible design.
  • 3.5" Center Inlet/ 3.5" Center Outlet 4.25" x 7.88" Oval x 16" Long Body 21" Overall Length
  • Compact size is perfect for applications with limited space
  • Un-Notched necks are designed for weld in installation

Product Details

Body Height (in.):7.88
Body Height:7.880 in.
Body Length (in.):16
Body Length:16.000 in.
Body Width (in.):4.5
Body Width:4.500 in.
Construction:All Welded
Description:XR-1® Stainless Sportsman Racing Mufflers
Grade Type:Performance
Inlet Connection Type:Pipe
Inlet Position:Center
Inlet Size (in.):3.5
Inlet Type:Single Center
Main Piping Diameter:3.500 in.
Material:T-304 Stainless Steel
Muffler Count:1
Off Road Use Only:No
Outlet Outside Diameter:3.500 in.
Outlet Position:Center
Outlet Size (in.):3.5
Outlet Type:Single Center Outlet
Overall Length (in.):21
Overall Length:21.000 in.
Part Number:bor40946
Position:N/A
Prop 65 (C, R or CR):CR
Prop 65 - Long Label:WARNING: This product in the physical form it is sold does not present a hazard. However, operations including, but not limited to welding, brazing, or thermal cutting can expose you to chemicals including Chromium, Nickel, Cobalt, Arsenic, Cadmium and Lead which are known to the State Of California to cause cancer, birth defects and other reproductive harm. For more information go towww.P65Warnings.ca.gov
Prop 65 - Short Label:WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 Warning Label:Proposition 65 Warning.JPG
Prop 65 Yes/No:Yes
Shape:Oval
Tip / Outlet Finish:N/A
Title:XR-1® Sportsman Racing Muffler 3.5" Center Inlet/ 3.5" Center Outlet 4.5" x 7.88" Oval x 16" Long Body Part # 40946

Additional Information

This part is designed and intended for installation in Ancient (Model Year 1974 or earlier), or Competition, or Racing Vehicles. Competition or Racing Vehicles may be operated exclusively in 1) events organized by recognized bodies with authorizing permits for participating drivers. 2) racing event qualification, and 3) practice associated with events. Installation and operation of this part in a non-Ancient street driven Vehicle, including driving Competition or Racing Vehicles to the racetrack, is likely to be considered illegal Tampering or a Defeat Device

Application Summary

XR-1? Sportsman Racing Muffler - 3.5" Center Inlet/ 3.5" Center Outlet 4.25" x 7.88" Oval x 16" Long Body 21" Overall Length. Universal Part. Reversible Design.

Part Type

Exhaust Muffler

Data: v4.2 - Upd: 2026-10-12 01:47:41

Features

  • 3.5" Center Inlet/ 3.5" Center Outlet 4.25" x 7.88" Oval x 16" Long Body 21" Overall Length
  • Compact size is perfect for applications with limited space
  • Un-Notched necks are designed for weld in installation
  • Universal muffler. Reversible design.

Specifications

Product Attributes - UPC
808422409469
Product Attributes - Brand
Borla
Product Attributes - Notes
Straight through design for maximum flow. Continuous filament fiber acoustic material for sound control.
Product Attributes - Quantity
Sold individually.
Product Attributes - Part Type
Mufflers
Product Attributes - Case Shape
Oval
Product Attributes - Reversible
No
Product Attributes - Width (in.)
7.875 in.
Product Attributes - Outlet Style
Standard, without tip
Product Attributes - Product Line
Borla XR-1 Racing Mufflers
Product Attributes - Inlet Location
Center
Product Attributes - Inlet Quantity
1
Product Attributes - Muffler Finish
Brushed
Product Attributes - Outlet Location
Center
Product Attributes - Outlet Quantity
1
Product Attributes - Thickness (in.)
4.250 in.
Product Attributes - Muffler Material
304 stainless steel
Product Attributes - Inlet Diameter (in.)
3.50 in.
Product Attributes - Overall Length (in.)
22.00 in.
Product Attributes - Internal Construction
Straight-through core
Product Attributes - Outlet Diameter (in.)
3.50 in.
Product Attributes - Case Exterior Length (in.)
16.00 in.
Product Attributes - Manufacturer's Part Number
40946

Reference Information

Brand Name/s Borla
StreetFX SKU bor40946
SFX Item ID 4224870
Supplier Item Code 4224870
Manufacturer SKU 40946
Manufacturer UPC 808422409469
Alternative References xr-1, 3.5in, 5in, 15in

Brochures

Compatibility

XR-1? Sportsman Racing Muffler - 3.5" Center Inlet/ 3.5" Center Outlet 4.25" x 7.88" Oval x 16" Long Body 21" Overall Length. Universal Part. Reversible Design.

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