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Borla CrateMuffler SBF 289/302/ 351 S-Type 2.50in Center/Offset Muffler

SKU: BOR400831

Mufflers

BOR CrateMufflers...

Borla CrateMuffler SBF 289/302/ 351 S-Type 2.50in Center/Offset Muffler

SKU: BOR400831

Mufflers

BOR CrateMufflers...

A$759.27
Available from MFR. In stock at 1 location (4 available)

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Description

Muffler

Crate Muffler

Additional Information

CrateMuffler, Ford Small Block 289/302 (Exc. Coyote 5.0L)/351W CID V8 High Output & Big Block 390/427/428/460 CID V8 FE Series Moderate Output,2.5" Offset Inlet/2.5" Center Outlet,4.35" x 9.10" Oval,14" Long Body, 19" Overall Length, S-Type

Part Type

Exhaust Muffler

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.


Data: v2 - Desc: v4.2 - Upd: 2026-11-07 17:22:28

Data: v4.2 - Upd: 2026-11-09 01:07:17

Features

  • 2.5" Offset Inlet/ 2.5" Center 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

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Body Height (in.):OEM
Body Height:OEM
Body Length (in.):14
Body Length:14.000 in.
Body Width (in.):OEM
Body Width:OEM
Construction:All Welded
Description:CrateMufflerâ„¢
Grade Type:Performance
Inlet Connection Type:Pipe
Inlet Outside Diameter:2.500 in.
Inlet Position:Offset
Inlet Size (in.):2.5
Inlet Type:OEM
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:OEM
Overall Length (in.):19
Overall Length:19.000 in.
Part Number:bor400831
Shape:Oval
Title Extended:CrateMuffler Ford Small Block High Output 289/302/351W CID & Big Block Moderate Output 390/427/428/460 CID FE Series 2.5in Offset/Center 14inx4.35inx9.10in S-Type Part # 400831
Title:CrateMuffler Muffler Ford Small Block 289/ 302/ 351W CID V8 High Output & Big Block 390/ 427/ 428/ 460 CID V8 Moderate Output FE Series 2.5in Offset Inlet/ 2.5in Center Outlet S-Type

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Borla, Borla Exhaust
StreetFX SKU bor400831
SFX Item ID 4225415
Accounting SKU bor-400831
Manufacturer SKU 400831
Manufacturer UPC 808422008310
Alternative References 400831, BOR-400831

Muffler, S-Type CrateMuffler, Oval, Stainless Steel, Natural, 2.50 in. Offset Inlet, 2.50 in. Center Outlet, Ford, Mercury, Each

"Lead the Heard" with Borla S-Type CrateMufflers. Specifically designed, engineered, and tuned to optimize the power and sound of your classic stock, crate, or custom-built engine, they deliver the intoxicating Borla "Sound of Power" with every squeeze of the throttle. They feature an enhanced combination of packing filament, straight-through core dimensions, perforation patterns, and cylindrical shapes. Purpose-built from aircraft-grade, T-304 stainless steel, they offer a race-inspired design to relieve the most restriction possible and bring the most power out of your engine. They feature an easily maintained finish, ensuring long-lasting showroom looks.

Product Attributes
BrandBorla
Manufacturer's Part Number400831
Part TypeMufflers
Product LineBorla S-Type CrateMufflers
UPC808422008310
Muffler Material304 stainless steel
Inlet Diameter (in.)2.50 in.
Outlet Diameter (in.)2.50 in.
Inlet Quantity1
Outlet Quantity1
Internal ConstructionPerforated tube
Inlet LocationOffset
Outlet LocationCenter
Case ShapeOval
ReversibleNo
Muffler FinishNatural
Case Exterior Length (in.)14.00 in.
Thickness (in.)4.350
Width (in.)9.000 in.
RemanufacturedNo
QuantitySold individually.
NotesS-Type style muffler.

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