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Flowmaster American Thunder Exhaust Systems for 1964-1966 MUSTANG - 17273 Exhaust, Thunder, Header-Back, Steel, Aluminized, H-Pipe, Polished Tips, Ford, Kit

SKU: FLO17273

Exhaust Systems

Flowmaster American Thunder Exhaust Systems for 1964-1966 MUSTANG - 17273 Exhaust, Thunder, Header-Back, Steel, Aluminized, H-Pipe, Polished Tips, Ford, Kit

SKU: FLO17273

Exhaust Systems
A$2,914.14
LOW STOCK! Est Ship 4-7 days. In stock at 2 locations (8 available)

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Description

Exhaust System - American Thunder - Header-Back - 2.5 in Diameter - Dual Rear Exit - 2.5 in Polished Tips - Steel - Aluminized - Small Block Ford - Ford Mustang 1964-66 - Kit


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 01:10:17

Data: v4.2 - Upd: 2026-11-11 03:04:25

Features

Note for Australian and European Markets

Unless otherwise stated, this product may be engineered for use in Left-Hand Drive vehicles. Steering components, pedals, shifters, linkages, wing mirrors, instrument clusters, panhard rods/traction bars, drag links, brake boosters, brake or clutch lines, accelerator cables, heater cores, some master cylinders and adjacent parts can vary between LHD and RHD configurations. In some models compenents such as windscreen wiper arms, motors and linkages could differ in their size and orientation. Items such as floor mats & dash mats may have differences in their structure around the front row (or padding in different locations). In many cases items are identical depending on the design of the vehicle and part, but may have differing mounts, lengths or bolt patterns. Carefully review the product images and details to ensure suitability for your vehicle, or contact StreetFX support if you are unsure. Returns are not accepted for special order products.

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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 flo17273
SFX Item ID 4983766
Accounting SKU flo-17273
Manufacturer SKU 17273
Manufacturer UPC 700042016594
Alternative References 17273, FLM17273, FLO-17273

Exhaust, American Thunder, Header-Back, Steel, Aluminized, H-Pipe, Polished Tips, Ford, Kit

Flowmaster American Thunder exhaust systems are designed with the latest exhaust technology available--resulting in improved acceleration, passing power, and fuel mileage. A key to these performance upgrades is Flowmaster's use of mandrel-bent tubing, which allows superior exhaust gas flow. The systems also feature mufflers (single or dual) that deliver plenty of the rich Flowmaster sound you expect. Components are built from stainless steel or aluminized steel; and some models include tips. American Thunder exhausts are available in more than a hundred configurations for fitment on specific truck and car applications.

Product Attributes
BrandFlowmaster
Manufacturer's Part Number17273
Part TypeExhaust Systems
Product LineFlowmaster American Thunder Exhaust Systems
UPC700042016594
System MaterialSteel
System StyleHeader-back
Exhaust TypeDual
Exit LocationSplit rear
System FinishAluminized
Catalytic Converter(s) IncludedNo
Intermediate Pipe Diameter (in.)2.50 in.
Muffler IncludedYes
Muffler QuantityTwo
Muffler ConfigurationSingle inlet/Single outlet
Muffler StyleChambered
Muffler MaterialSteel
Muffler ColorBlack
Hardware IncludedYes
Tailpipe Diameter (in.)2.50 in.
Tip IncludedYes
Tip Outlet Size (in.)2.50
Tip Quantity2
Tip ShapeRound
Tip CutSlant
Tip Edge StyleNon-rolled edge, single-wall
Tip Material304 stainless steel
Tip ColorPolished
RemanufacturedNo
QuantitySold as a kit.
NotesKit includes H pipe. Due to variations in different manufacturers headers, modifications to the length and or angles of the intermediate pipes may be required when connecting to the header collectors. Will not fit GT or convertible models.
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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