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Borla Universal 2-1/4, 2-1/4 14x7-7/8 x 4-1/4 w/ Notch PRO-XS Muffler

SKU: BOR400479

Mufflers

BOR Pro-XS Mufflers...

Borla Universal 2-1/4, 2-1/4 14x7-7/8 x 4-1/4 w/ Notch PRO-XS Muffler

SKU: BOR400479

Mufflers

BOR Pro-XS Mufflers...

A$370.49
Available from MFR. In stock at 1 location (10 available)

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Description

ProXS Muffler

Value-priced BORLA® ProXS mufflers share many of the hottest features of our performanceline. Including high-quality 300 Series austenitic stainless steel construction, streetcommandingsound and our Million Mile Warranty. Sizes are available for import anddomestic cars and trucks.

Additional Information

ProXS Muffler 2.25" Offset Inlet/ 2.25" Center Outlet, 4.25" x 7.88" Oval, 14 Long Body, 19" Overall Length. Universal Part. Reversible Design. Notched Necks.

Part Type

Exhaust Muffler

Product Overview

Notched necks for easy clamp-on installation. Compact size is perfect for applications with limited space. Reversible design for installation flexibility. High-quality T-304 austenitic stainless steel will never rust. 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.


Data: v2 - Desc: v4.2 - Upd: 2026-11-07 17:21:46

Data: v4.2 - Upd: 2026-11-08 01:06:03

Features

  • 2.25" Offset Inlet / 2.25" Center Outlet, 4.25" x 7.88" Oval, 14" Long Body, 19" Overall Length
  • Alternate muffler with Un-Notched necks is 40658. If clamping, use 3" wide band clamps 18003.
  • Notched necks are designed for clamp in installation. Use 1" wide band clamps 18322.
  • Universal muffler. Reversible design.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Body Height (in.):4.25
Body Height:4.250 in.
Body Length (in.):14
Body Length:14.000 in.
Body Width (in.):7.875
Body Width:7.875 in.
Construction:All Welded
Description:Borla® Pro XS Muffler
Grade Type:Performance
Inlet Connection Type:Pipe
Inlet Position:Offset
Inlet Size (in.):2.25
Inlet Type:Single Offset
Main Piping Diameter:2.250 in.
Material:T-304 Stainless Steel
Muffler Count:1
Off Road Use Only:No
Outlet Outside Diameter:2.250 in.
Outlet Position:Center
Outlet Size (in.):2.25
Outlet Type:Single Center Outlet
Overall Length (in.):18
Overall Length:18.000 in.
Part Number:bor400479
Shape:Oval
Title Extended:ProXS Muffler 2.25in Offset/Center 14inx4.25inx7.88in Part # 400479
Title:ProXS Muffler 2.25in Offset Inlet/ 2.25in Center Outlet 4.25in x 7.88in Oval x 14in Long Body Notched Necks

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Borla, Borla Exhaust
StreetFX SKU bor400479
SFX Item ID 4224885
Accounting SKU bor-400479
Manufacturer SKU 400479
Manufacturer UPC 808422004794
Alternative References 400479, BOR-400479

Muffler, ProXS, Oval Case, Stainless, 2.25 in. Offset Inlet, 2.25 in. Center Outlet, 18 in. Overall Length

Precision-manufactured by the pioneers in exhaust performance, Borla ProXS mufflers feature proven, high performance technology that is surprisingly affordable. These silencers are manufactured from rust-resistant, aircraft-quality T-304 stainless steel. They'll deliver more power, improved fuel economy, prolonged engine life, and a street-commanding growl that conveys performance. Borla ProXS mufflers are available in a variety of inlet and outlet size/quantity/location configurations.

Product Attributes
UPC808422004794
BrandBorla
QuantitySold individually.
Part TypeMufflers
Case ShapeOval
ReversibleNo
Width (in.)7.875 in.
Outlet StyleStandard, without tip
Product LineBorla ProXS Mufflers
Inlet LocationOffset
Inlet Quantity1
Muffler FinishNatural
Outlet LocationCenter
Outlet Quantity1
Thickness (in.)4.250 in.
Muffler Material304 stainless steel
Inlet Diameter (in.)2.25 in.
Overall Length (in.)18.00 in.
Internal ConstructionStraight-through core
Outlet Diameter (in.)2.25 in.
Case Exterior Length (in.)14.00 in.
Manufacturer's Part Number400479

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