Flowmaster
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Flowmaster American Thunder Exhaust Systems 17421 Exhaust, Thunder, Rear Axle-Back, Steel, Aluminized, Polished Stainless Tip, Ford, 4.0L, Kit
Flowmaster American Thunder Exhaust Systems 17421 Exhaust, Thunder, Rear Axle-Back, Steel, Aluminized, Polished Stainless Tip, Ford, 4.0L, Kit
A$1,235.08
IN STOCK! Est Ship 4-7 days.
In stock at 2 locations
(5 available)
We accept
Description
Exhaust System - American Thunder - Axle-Back - 2.5 in Diameter - Dual Rear Exit - 3.5 in Polished Tips - Steel - Aluminized - Ford V6 - Ford Mustang 2005-09 - Kit
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 01:10:18
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 | flo17421 |
| SFX Item ID | 4983778 |
| Accounting SKU | flo-17421 |
| Manufacturer SKU | 17421 |
| Manufacturer UPC | 700042020584 |
| Alternative References | 17421, FLM17421, FLO-17421 |
Exhaust, American Thunder, Rear Axle-Back, Steel, Aluminized, Polished Stainless Tip, Ford, 4.0L, Kit
These Flowmaster American Thunder back half kits for the 2005-2009 Mustang V6 are designed to deliver more performance for your vehicle. They include aluminized steel mufflers that are painted black for protection and polished stainless steel tips.
| Product Attributes | |
|---|---|
| Brand | Flowmaster |
| Manufacturer's Part Number | 17421 |
| Part Type | Exhaust Systems |
| Product Line | Flowmaster American Thunder Exhaust Systems |
| UPC | 700042020584 |
| System Material | Steel |
| System Style | Rear axle-back |
| Exhaust Type | Single |
| Exit Location | Rear |
| System Finish | Aluminized |
| Catalytic Converter(s) Included | No |
| Intermediate Pipe Diameter (in.) | 2.50 in. |
| Muffler Included | Yes |
| Muffler Quantity | One |
| Muffler Configuration | Single inlet/Single outlet |
| Muffler Style | Chambered |
| Muffler Material | Steel |
| Muffler Finish | Black |
| Hardware Included | Yes |
| Tailpipe Diameter (in.) | 2.50 in. |
| Tip Included | Yes |
| Tip Outlet Size (in.) | 3.50 |
| Tip Quantity | 1 |
| Tip Shape | Round |
| Tip Cut | Slant |
| Tip Edge Style | Rolled edge |
| Tip Material | 304 stainless steel |
| Tip Color | Polished |
| Remanufactured | No |
| Quantity | Sold individually. |
| Notes | All models including convertible. |
| Special Attention | It 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. |
Compatibility
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