Borla 2.25in Dual In/Out 19in x 9.5in x 4in Turbo XL Muffler

SKU: BOR400287

Mufflers

BOR Pro-XS Mufflers...

Borla

Borla 2.25in Dual In/Out 19in x 9.5in x 4in Turbo XL Muffler

SKU: BOR400287

Mufflers

BOR Pro-XS Mufflers...

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

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

ProXS Muffler 2.25" Dual Inlet/ 2.25" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Un-Notched necks are designed for weld in installation. If clamping, use 3" wide band clamps 18003 (clamps not included). This muffler features an internal X-Pipe for increased performance and improved sound. Reversible design for installation flexibility. T-304 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. Best of all, it's made in the USA and backed by BORLA(r)'s Million-Mile warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.

Features and Benefits

Universal muffler. Reversible design. Dual Inlet, dual outlet. Contains an internal X-Pipe.
2.25" Dual Inlet/ 2.25" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length
Un-Notched necks are designed for weld in installation. If clamping, use 3" wide band clamps 18003.
Alternate muffler with Notched necks is 400492. Use 1" wide band clamps 18322.

Product Details

Body Height (in.):	4
Body Height:	4.000 in.
Body Length (in.):	19
Body Length:	19.000 in.
Body Width (in.):	9.5
Body Width:	9.500 in.
Construction:	All Welded
Description:	BorlaÂ® Pro XS Muffler
Grade Type:	Performance
Inlet Connection Type:	Pipe
Inlet Position:	Front
Inlet Size (in.):	2.25
Inlet Type:	Dual
Main Piping Diameter:	2.250 in.
Material:	T-304 Stainless Steel
Muffler Count:	2
Off Road Use Only:	No
Outlet Outside Diameter:	2.250 in.
Outlet Position:	Rear
Outlet Size (in.):	2.25
Outlet Type:	Dual Outlet
Overall Length (in.):	19
Overall Length:	19.000 in.
Part Number:	bor400287
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:	ProXS™ Muffler With Internal X-Pipe 2.25" Dual Inlet/ 2.25" Dual Outlet 4" x 9.5" Oval x 19" Long Body Part # 400287

Application Summary

ProXS? Muffler 2.25" Dual Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Internal X-Pipe. Universal Part. Reversible Design.

Part Type

Exhaust Muffler

Data: v4.2 - Upd: 2026-10-13 15:27:10

Features

2.25" Dual Inlet/ 2.25" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length
Alternate muffler with Notched necks is 400492. Use 1" wide band clamps 18322.
Un-Notched necks are designed for weld in installation. If clamping, use 3" wide band clamps 18003.
Universal muffler. Reversible design. Dual Inlet, dual outlet. Contains an internal X-Pipe.

Specifications

Product Attributes - UPC: 808422002875
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 Performance Turbo XL Mufflers
Product Attributes - Inlet Location: Offset
Product Attributes - Inlet Quantity: 2
Product Attributes - Muffler Finish: Brushed
Product Attributes - Outlet Location: Offset
Product Attributes - Outlet Quantity: 2
Product Attributes - Thickness (in.): 4.000 in.
Product Attributes - Muffler Material: 304 stainless steel
Product Attributes - Inlet Diameter (in.): 2.25 in.
Product Attributes - Overall Length (in.): 24.00 in.
Product Attributes - Internal Construction: Turbo-style
Product Attributes - Outlet Diameter (in.): 2.25 in.
Product Attributes - Case Exterior Length (in.): 19.00 in.
Product Attributes - Manufacturer's Part Number: 400287

Reference Information

Brand Name/s	Borla
StreetFX SKU	bor400287
SFX Item ID	4224863
Supplier Item Code	4224863
Manufacturer SKU	400287
Manufacturer UPC	808422002875
Alternative References	2.25in, 19in, 9.5in, 4in

Brochures

Primary brochure

Compatibility

ProXS? Muffler 2.25" Dual Inlet/ 2.5" Dual Outlet, 4" x 9.5" Oval, 19" Long Body, 24" Overall Length. Internal X-Pipe. Universal Part. Reversible Design.

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