Home / Shop / Borla Universal Oval Transverse Single 3in Inlet/2.5in Outlet 19in x 10.25in x 5.5in Turbo Muffler

Borla Universal Oval Transverse Single 3in Inlet/2.5in Outlet 19in x 10.25in x 5.5in Turbo Muffler

SKU: BOR40474

Mufflers

BOR Universal Mufflers...

Borla

Borla Universal Oval Transverse Single 3in Inlet/2.5in Outlet 19in x 10.25in x 5.5in Turbo Muffler

SKU: BOR40474

Mufflers

BOR Universal Mufflers...

IN STOCK! Est Ship 3-5 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.

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Description

Transverse Flow design. Transverse flow mufflers were originally designed for GM F-Body Camaros and Firebirds. On these vehicles they were mounted behind the rear axle and were parallel to the axle. This muffler can also be used to create custom systems on other vehicles. Single 3" Offset Inlet/ Dual 2.5" Offset Outlets. The inlet and one outlet are on one end of the muffler, and the second outlet is on the opposite end. 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. 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.

Product Overview

Transverse Flow design. Transverse flow mufflers were originally designed for GM F-Body Camaros and Firebirds. On these vehicles they were mounted behind the rear axle and were parallel to the axle. This muffler can also be used to create custom systems on other vehicles. Single 3" Offset Inlet/ Dual 2.5" Offset Outlets. The inlet and one outlet are on one end of the muffler, and the second outlet is on the opposite end. 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. 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

Transverse flow design, originally designed for F-Body Camaro and Firebirds
Universal muffler. Reversible design.;
Alternate muffler with Notched necks is 400498, use band clamps 18325 & 18330.
Un-Notched necks are designed for weld in installation. If clamping, use band clamps 18004 & 18006.;

Product Details

Body Height (in.):	5.5
Body Height:	5.500 in.
Body Length (in.):	19
Body Length:	19.000 in.
Body Width (in.):	10.25
Body Width:	10.250 in.
Construction:	All Welded
Description:	Universal Performance Mufflers
Grade Type:	Performance
Inlet Connection Type:	Pipe
Inlet Outside Diameter:	3.000 in.
Inlet Position:	Offset
Inlet Size (in.):	3
Inlet Type:	Single Offset
Main Piping Diameter:	3.000 in.
Material:	T-304 Stainless Steel
Muffler Count:	2
Off Road Use Only:	No
Outlet Outside Diameter:	3.000 in.
Outlet Position:	Dual Rear
Outlet Size (in.):	3
Outlet Type:	Dual Outlet
Overall Length (in.):	24 (2 ft.)
Overall Length:	24.000 in.
Part Number:	bor40474
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:	Specialty Muffler Transverse Flow 3 in. Single Inlet/ 2.5 in. Dual Outlet 5.5 in. x 10.25 in. Oval x 19 in. Long Body Part # 40474
Title:	Specialty Muffler Transverse Flow 3 in. Single Inlet/ 2.5 in. Dual Outlet 5.5 in. x 10.25 in. Oval x 19 in. Long Body

Application Summary

Specialty Muffler - Transverse Flow - Single 3" Offset Inlet/ Dual 2.5" Offset Outlets (One Outlet On Same End As Inlet And One Outlet On Opposite End) 6" x 10.25" Oval x 19" Long Body 24" Overall Length. Universal Part. Reversible Design.

Part Type

Exhaust Muffler

Data: v4.2 - Upd: 2026-10-14 02:09:53

Features

Alternate muffler with Notched necks is 400499, use band clamps 18325 & 18330
Transverse flow design, originally designed for F-Body Camaro and Firebirds
Un-Notched necks are designed for weld in installation. If clamping, use band clamps 18004 & 18006.
Universal muffler. Reversible design.

Specifications

Product Attributes - UPC: 808422404747
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.): 10.250 in.
Product Attributes - Outlet Style: Standard, without tip
Product Attributes - Product Line: Borla ProXS Mufflers
Product Attributes - Inlet Location: Offset
Product Attributes - Inlet Quantity: 1
Product Attributes - Muffler Finish: Natural
Product Attributes - Outlet Location: Offset
Product Attributes - Outlet Quantity: 2
Product Attributes - Thickness (in.): 5.500 in.
Product Attributes - Muffler Material: 304 stainless steel
Product Attributes - Inlet Diameter (in.): 3.00 in.
Product Attributes - Overall Length (in.): 23.00 in.
Product Attributes - Internal Construction: Straight-through core
Product Attributes - Outlet Diameter (in.): 2.50 in.
Product Attributes - Case Exterior Length (in.): 19.00 in.
Product Attributes - Manufacturer's Part Number: 40474

Reference Information

Brand Name/s	Borla
StreetFX SKU	bor40474
SFX Item ID	4224980
Supplier Item Code	4224980
Manufacturer SKU	40474
Manufacturer UPC	808422404747
Alternative References	3in, Inlet/2.5in, 19in, 10.25in, 5.5in