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Borla

Borla Non-Spec Vehicle ALL CrateMuffler

MPN: 400844 Catalog #: 00828238 Category: Muffler Check Vehicle Fitment

Product Details

Muffler - CrateMuffler ATAK - 3 in Offset Inlet - 3 in Center Outlet - 14 in x 4.35 in x 9.1 in Oval Body - 19 in Long - Stainless - Natural - Small Block Chevy - Each

Borla(r)'s CrateMuffler is the world's first muffler purpose-built to optimize the sound & power of crate and custom built motors. This CrateMuffler 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 with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.

ATAK® CrateMuffler Small Block Chevrolet High Output 350/ 383/ 406 V8 2.5 Offset/ Center 14 x 4.35 x 9.10 Body

BORLA 400844: CrateMuffler; Offset/Center; 3 in.; 14 in. x 4.35 in. x 9 in. Case Body; Oval; For SBC Hot 350/383; Atak Sound; T-304 Stainless Steel;

FOR SBC HOT 350, 383. This muffler is directional. The outlet can be identified by the mounting bracket welded to the endcap. Note: Dual exhaust applications require 2 CrateMufflers.

Muffler - CrateMuffler - 3 in Offset Inlet - 3 in Center Outlet - 14 in x 4.35 in x 9.1 in Oval Body - 19 in Long - Stainless - Natural - Small Block Chevy - Each

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Engine Compatibility

GM - SBCMatched variant: SBC

Small Block Chevy; 265–400ci

Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.

Product Specs

Brand
Borla
Part Number
400844
Catalog Number
00828238
Product Line
CrateMuffler
Category
Exhaust
Type
Muffler
UPC / Barcode
808422008440
Vendor Product Category
Exhaust, Mufflers & Tips
Vendor Product Subcategory
Muffler
Length
23.80 in
Width
10.60 in
Height
10.40 in
Weight
14.00 lb
Units Per SKU
1
Freight / LTL
No
Ship Alone
No
Air Restricted
No
Hazmat
No
Chemical
No
Prop 65
Y
CARB Approved
Yes
Clearance Item
No
Non-Returnable
No
Case Quantity
1
Kit
No

Shipping & Availability

Current status 159 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Inventory shown: 159 available as of 6/4/2026.

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