Borla CrateMuffler LS3 ATAK 2.5in Offset/Offset 14inx4.35inx9in Muffler

SKU: BOR400947

Mufflers

BOR CrateMufflers...

Borla

Borla CrateMuffler LS3 ATAK 2.5in Offset/Offset 14inx4.35inx9in Muffler

SKU: BOR400947

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. The directional design provides the aggressive ATAK(r) sound and will dramatically reduce, or eliminate drone on specified applications. Muffler dimensions 2.5" Offset Inlet/ 2.5" Offset Outlet, 4.35" x 9.10" Oval, 14" Long Body, 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(r)'s CrateMuffler(r) is the world's first muffler purpose-built to optimize the sound & power of crate and custom built motors. This CrateMuffler(r) features the aggressive ATAK(r) sound. 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 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.

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.

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; Atak 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:	bor400947
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(r) Muffler Chevrolet LS3 6.2L V8 Stock Output 2.5 in. Offset Inlet/ 2.5 in. Offset Outlet ATAK(r) Part # 400947
Title:	CrateMuffler(r) Muffler Chevrolet LS3 6.2L V8 Stock Output 2.5 in. Offset Inlet/ 2.5 in. Offset Outlet ATAK(r)

Application Summary

CrateMuffler(r) Chevrolet Stock Output LS3 6.2L V8 2.5" Offset/ Offset 14" x 4.35" x 9.10" ATAK(r).

Part Type

Exhaust Muffler

Data: v4.2 - Upd: 2026-10-14 06:03:08

Features

2.5" Offset Inlet/ 2.5" Offset Outlet, 4.35" x 9.10" Oval, 14" Long Body, 19" Overall Length
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 - UPC: 808422009478
Product Attributes - Brand: Borla
Product Attributes - Notes: ATAK style muffler. Designed for LS3 crate engines. Muffler is directional.
Product Attributes - Quantity: Sold individually.
Product Attributes - Part Type: Mufflers
Product Attributes - Case Shape: Oval
Product Attributes - Reversible: No
Product Attributes - Width (in.): 9.000 in.
Product Attributes - Outlet Style: Standard, without tip
Product Attributes - Product Line: Borla ATAK CrateMufflers
Product Attributes - Inlet Location: Offset
Product Attributes - Inlet Quantity: 1
Product Attributes - Muffler Finish: Natural
Product Attributes - Outlet Location: Offset
Product Attributes - Outlet Quantity: 1
Product Attributes - Thickness (in.): 4.350 in.
Product Attributes - Muffler Material: 304 stainless steel
Product Attributes - Inlet Diameter (in.): 2.50 in.
Product Attributes - Internal Construction: Perforated stainless tube with packing
Product Attributes - Outlet Diameter (in.): 2.50 in.
Product Attributes - Case Exterior Length (in.): 14.00 in.
Product Attributes - Manufacturer's Part Number: 400947

Reference Information

Brand Name/s	Borla
StreetFX SKU	bor400947
SFX Item ID	4224599
Supplier Item Code	4224599
Manufacturer SKU	400947
Manufacturer UPC	808422009478
Alternative References	LS3, 2.5in, 14inx4.35inx9in