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Flowmaster Outlaw Series Exhaust Systems for 2018-2023 MUSTANG - 817821 System, Series, Rear Axle-Back, 409 Stainless Steel, Natural/Black, 3 in. Diameter, Polished Tip, Ford, Kit

SKU: FLO817821

Exhaust Systems

Flowmaster Outlaw Series Exhaust Systems for 2018-2023 MUSTANG - 817821 System, Series, Rear Axle-Back, 409 Stainless Steel, Natural/Black, 3 in. Diameter, Polished Tip, Ford, Kit

SKU: FLO817821

Exhaust Systems
A$3,259.31
LAST ONE! Est Ship 4-7 days. In stock at 1 location (only 1 available)

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Description


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 01:11:07

Data: v4.2 - Upd: 2026-11-11 03:04:23

Features

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

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Flowmaster, Flowmaster (holley)
StreetFX SKU flo817821
SFX Item ID 4984198
Accounting SKU flo-817821
Manufacturer SKU 817821
Manufacturer UPC 700042038152
Alternative References 817821, FLM817821, FLO-817821

Exhaust System, Outlaw Series, Rear Axle-Back, 409 Stainless Steel, Natural/Black, 3 in. Diameter, Polished Tip, Ford, Kit

Flowmaster Outlaw Series exhaust systems are mandrel-bent for maximum performance and include specially designed mufflers. They deliver bold, dynamic interior and exterior tones for enthusiasts who covet the most aggressive components available. These systems include hardware and tips, where applicable--so installation is quick and easy. The kits are available in dozens of configurations for fitment on specific vehicles, including standard, crew, extended, and extended crew truck cabs; and long or short bed lengths. Order the Flowmaster Outlaw model designed for your application.

Product Attributes
BrandFlowmaster
Manufacturer's Part Number817821
Part TypeExhaust Systems
Product LineFlowmaster Outlaw Series Exhaust Systems
UPC700042038152
System Material409 stainless steel
System StyleRear axle-back
Exhaust TypeDual
Exit LocationSplit rear
System FinishNatural
Catalytic Converter(s) IncludedNo
Intermediate Pipe Diameter (in.)3.00 in.
Muffler IncludedYes
Muffler QuantityTwo
Muffler ConfigurationSingle inlet/Single outlet
Muffler StyleChambered
Muffler Material409 stainless steel
Muffler ColorBlack
Hardware IncludedYes
Tailpipe Diameter (in.)3.00 in.
Tip IncludedYes
Tip Outlet Size (in.)4.00
Tip Quantity4
Tip ShapeRound
Tip CutSlant
Tip Edge StyleBeveled edge, double-wall
Tip Material304 stainless steel
Tip ColorPolished
RemanufacturedNo
QuantitySold as a kit.
NotesDoes not retain Active Performance exhaust valves.
Special AttentionIt is illegal to install parts or components that bypass, defeat, or render inoperative the manufacturers’ technology and design necessary to reduce vehicle emissions to meet state and federal Clean Air Act standards.

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