Borla CrateMuffler LS3 S-Type 2.50in Offset/Offset 14inx4.35inx9in Oval Muffler

SKU: BOR400946

Mufflers

BOR CrateMufflers...

Borla

Borla CrateMuffler LS3 S-Type 2.50in Offset/Offset 14inx4.35inx9in Oval Muffler

SKU: BOR400946

Mufflers

BOR CrateMufflers...

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.

We accept

Description

BORLA(r)'s CrateMuffler(r) is the world's first muffler purpose-built to optimize the sound & power of crate and custom built motors. The mufflers are directional. The outlet can be identified by the mounting bracket welded to the endcap. This muffler is tuned for the Chevrolet LS3 6.2L V8 family. The directional design provides the classic S-Type sound and will dramatically reduce, or eliminate drone on specified applications. Add resonator 400938 to attain the Touring sound. Muffler dimensions 2.5" Offset Inlet/ 2.5" Offset Outlet, 4.35" x 9.10" Oval, 14" Body Length, 19" Overall Length. Built from premium T-304 stainless steel, superior to T-400 series (such as 409), to give you the absolute best in performance and durability. Precision computer numerical control (CNC) manufacturing ensures an accurate fit and best of all, BORLA(r) stands behind every CrateMuffler(r) with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.

Product Overview

Borla's CrateMuffler is the world's first muffler purpose-built to optimize the sound & power of crate and custom built motors. The mufflers are directional. The outlet can be identified by the mounting bracket welded to the endcap. The directional design provides custom sound, tuned for each engine family and will dramatically reduce, or eliminate drone on specified applications. Built from premium T-304 stainless steel, superior to T-400 series (such as 409), to give you the absolute best in performance and durability. Precision computer-controlled CNC manufacturing ensures an accurate fit and best of all, Borla stands behind every CrateMuffler with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.

Features and Benefits

CrateMufflers are tuned for specific engines
When installed on cataloged applications, they will reduce, or eliminate drone
Mufflers have directional flow. Outlet end has mounting bracket on it.
Add resonator 400938 to attain the Touring sound level

Product Details

Body Height (in.):	9
Body Height:	9.000 in.
Body Length (in.):	14
Body Length:	14.000 in.
Body Width (in.):	4.35
Body Width:	4.350 in.
Construction:	All Welded
Description:	CrateMuffler; 2.5 in. In/Out; 14 in. L x 4.35 in. W x 9 in. H; Offset/Offset; S-Type Sound Level;
Grade Type:	Performance
Inlet Connection Type:	Pipe
Inlet Outside Diameter:	2.500 in.
Inlet Position:	Offset
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:	Center
Outlet Size (in.):	2.5
Outlet Type:	Single Center Outlet
Overall Length (in.):	14
Overall Length:	14.000 in.
Part Number:	bor400946
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:	Rectangular
Tip / Outlet Finish:	N/A
Title Extended:	CrateMuffler Chevrolet LS3 6.2L Stock Output 2.5in Offset/Offset 14inx4.35inx9.10in S-Type Part # 400946
Title:	CrateMuffler Muffler Chevrolet LS3 6.2L V8 Stock Output 2.5in Offset Inlet/ 2.5in Offset Outlet S-Type

Application Summary

CrateMuffler Chevrolet Stock Output LS3 6.2L V8.

Part Type

Exhaust Muffler

Data: v4.2 - Upd: 2026-10-15 02:12:38

Features

2.5" Offset Inlet/ 2.5" Offset Outlet, 4.35" x 9.10" Oval, 14" Long Body, 19" Overall Length
Add resonator 400938 to attain the Touring sound level
CrateMuffler(r)s are tuned for specific engines
Mufflers have directional flow. Outlet end has mounting bracket on it.
When installed on cataloged applications, they will reduce, or eliminate drone

Specifications

Product Attributes - Brand: Borla
Product Attributes - Manufacturer's Part Number: 400946
Product Attributes - Part Type: Mufflers
Product Attributes - Product Line: Borla S-Type CrateMufflers
Product Attributes - UPC: 808422009461
Product Attributes - Muffler Material: 304 stainless steel
Product Attributes - Inlet Diameter (in.): 2.50 in.
Product Attributes - Outlet Diameter (in.): 2.50 in.
Product Attributes - Inlet Quantity: 1
Product Attributes - Outlet Quantity: 1
Product Attributes - Inlet Location: Offset
Product Attributes - Outlet Location: Offset
Product Attributes - Case Shape: Oval
Product Attributes - Reversible: No
Product Attributes - Internal Construction: Perforated tube
Product Attributes - Muffler Finish: Natural
Product Attributes - Case Exterior Length (in.): 14.00 in.
Product Attributes - Thickness (in.): 4.350 in.
Product Attributes - Width (in.): 9.000 in.
Product Attributes - Remanufactured: No
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: S-Type style muffler.

Reference Information

Brand Name/s	Borla
StreetFX SKU	bor400946
SFX Item ID	4224651
Supplier Item Code	4224651
Manufacturer SKU	400946
Manufacturer UPC	808422009461
Alternative References	LS3, 2.50in, 14inx4.35inx9in