Street. Track. Everything between.
07 3276 7829
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Borla 2.5in Inlet/Outlet Center/Offset Oval ProXS Muffler

SKU: BOR40659

Mufflers

BOR Pro-XS Mufflers...

Borla 2.5in Inlet/Outlet Center/Offset Oval ProXS Muffler

SKU: BOR40659

Mufflers

BOR Pro-XS Mufflers...

A$437.04
IN STOCK! Est Ship 3-5 days. In stock at 3 locations (more than 10 available)

Added to cart

We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Muffler - ProXS - 2.5 in Offset Inlet - 2.5 in Center Outlet - 14 x 4.25 x 7.88 in Oval Body - 19 in Long - Stainless - Natural - Universal - Each

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 2.5" Offset Inlet/ 2.5" Center Outlet, 4.25" x 7.88" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.

Part Type

Exhaust Muffler

Product Overview

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 17:22:19

Data: v4.2 - Upd: 2026-11-08 18:36:57

Features

  • 2.5" Offset Inlet / 2.5" Center Outlet, 4.25" x 7.88" Oval, 14" Long Body, 19" Overall Length
  • Alternate muffler with Notched necks is 400481. Use 1" wide band clamps 18325.
  • Un-Notched necks are designed for weld in installation. If clamping, use 3" wide band clamps 18004.
  • 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.):7.88
Body Width:7.880 in.
Construction:All Welded
Description:Borla® Pro XS Muffler
Grade Type:Performance
Inlet Connection Type:Pipe
Inlet Outside Diameter:2.500 in.
Inlet Position:Center
Inlet Size (in.):2.5
Inlet Type:Single Center
Main Piping Diameter:2.250 in.
Material:T-304 Stainless Steel
Muffler Count:1
Off Road Use Only:No
Outlet Outside Diameter:2.500 in.
Outlet Position:Offset
Outlet Size (in.):2.5
Outlet Type:Single Offset Outlet
Overall Length (in.):19
Overall Length:19.000 in.
Part Number:bor40659
Shape:Oval
Title Extended:ProXS Muffler 2.5in Offset/Center 14inx4.25inx7.88in Part # 40659
Title:ProXS Muffler 2.5in Offset Inlet/ 2.5in Center Outlet 4.25in x 7.88in Oval x 14in Long Body

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Borla, Borla Exhaust
StreetFX SKU bor40659
SFX Item ID 4225299
Accounting SKU bor-40659
Manufacturer SKU 40659
Manufacturer UPC 808422406598
Alternative References 40659, BOR-40659

Muffler, Pro XS, 2.5 in. Inlet/2.5 in. Outlet, Stainless Steel, Natural, Each

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
BrandBorla
Manufacturer's Part Number40659
Part TypeMufflers
Product LineBorla ProXS Mufflers
UPC808422406598
Muffler Material304 stainless steel
Inlet Diameter (in.)2.50 in.
Outlet Diameter (in.)2.50 in.
Inlet Quantity1
Outlet Quantity1
Electronic ValveNo
Internal ConstructionStraight-through core
Inlet LocationOffset
Outlet LocationCenter
Case ShapeOval
ReversibleYes
Muffler ColorNatural
Case Exterior Length (in.)14.00 in.
Overall Length (in.)19.00 in.
Thickness (in.)4.250
Width (in.)7.880 in.
Outlet StyleStandard, without tip
RemanufacturedNo
QuantitySold individually.

Brochures

Compatibility

Loading compatibility information...

Keep shopping

More from Borla