Borla Universal 2.5in Inlet/Outlet ProXS Muffler

SKU: BOR40358

Mufflers

BOR Pro-XS Mufflers

Borla

Borla Universal 2.5in Inlet/Outlet ProXS Muffler

SKU: BOR40358

Mufflers

BOR Pro-XS Mufflers

Sale ends in Calculating... Wed 14 Oct, 7:00 am AEST

Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

We accept

Description

Value-priced BORLAÂ® 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.

Product Overview

All of BORLA Pro-XS mufflers (formerly called BORLA Turbo mufflers) utilize a straight-through design; we do not use chambers or baffles that slow down the flow of exhaust. As such, every one of our universal mufflers are reversible. A center-in/offset-out muffler can also be installed as offset-in/center-out. The same holds true for our center-in/dual-out mufflers.

Product Details

Body Height (in.):	4
Body Height:	4.000 in.
Body Length (in.):	14
Body Length:	14.000 in.
Body Width (in.):	9.5
Body Width:	9.500 in.
Construction:	All Welded
Description:	BorlaÃ‚Â® 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:	2.500 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:	bor40358
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:	Proposition 65 Warning.JPG
Prop 65 Yes/No:	Yes
Shape:	Oval
Tip / Outlet Finish:	N/A
Title Extended:	ProXS Muffler 2.5in Offset/Center 14inx4inx9.5in Part # 40358
Title:	ProXS Muffler 2.5in Offset Inlet/ 2.5in Center Outlet 4in x 9.5in Oval x 14in Long Body

Application Summary

ProXS? Muffler 2.5" Offset Inlet/ 2.5" Center Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length. Universal Part. Reversible Design.

Part Type

Exhaust Muffler

Data: v4.2 - Upd: 2026-10-10 19:27:20

Features

2.5" Offset Inlet/ 2.5" Center Outlet, 4" x 9.5" Oval, 14" Long Body, 19" Overall Length
Alternate muffler with Notched necks is 400480. 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.

Specifications

Product Attributes - UPC: 808422403580
Product Attributes - Brand: Borla
Product Attributes - Quantity: Sold individually.
Product Attributes - Part Type: Mufflers
Product Attributes - Case Shape: Oval
Product Attributes - Reversible: Yes
Product Attributes - Width (in.): 9.500 in.
Product Attributes - Outlet Style: Standard, without tip
Product Attributes - Product Line: Borla ProXS Mufflers
Product Attributes - Inlet Location: Center
Product Attributes - Inlet Quantity: 1
Product Attributes - Muffler Finish: Natural
Product Attributes - Outlet Location: Offset
Product Attributes - Outlet Quantity: 1
Product Attributes - Thickness (in.): 4.000 in.
Product Attributes - Muffler Material: 304 stainless steel
Product Attributes - Inlet Diameter (in.): 2.50 in.
Product Attributes - Overall Length (in.): 19.00 in.
Product Attributes - Internal Construction: Straight-through core
Product Attributes - Outlet Diameter (in.): 2.50 in.
Product Attributes - Case Exterior Length (in.): 14.00 in.
Product Attributes - Manufacturer's Part Number: 40358

Reference Information

Brand Name/s	Borla
StreetFX SKU	bor40358
SFX Item ID	4224965
Supplier Item Code	4224965
Manufacturer SKU	40358
Manufacturer UPC	808422403580
Alternative References	2.5in