
Questions about fitment?
Talk to a TRU specialist
We’ll help you verify fitment before you buy.
Veteran-owned · Austin, Texas · Mon–Fri 9:30a–11:00a & 1:00p–5:30p CT
Important notes before you order
- Fits 1999-2004 Ford Mustang GT, MACH1 and Bullitt models (not Cobra) with 4.6L SOHC engine.
Specifications
| Brand | Flowmaster |
|---|---|
| Part number | 17312 |
| Brand | Flowmaster |
| CARB (California) Compliant | Yes |
| Catalytic Converter Included | No |
| Catalytic Converter Quantity | 0 |
| Category | Exhaust |
| Clamping Type | U-Bolt |
| Clamps Included | Yes |
| Drive | 2WD |
| Emission Code | 5 |
| Exhaust Series | American Thunder |
| Exhaust Tip Connection | Welded |
| Exhaust Tip Cut | Angled |
| Exhaust Tip Diameter | 3.00 IN |
| Exhaust Tip Edge | Slash Cut |
| Exhaust Tip Finish | Polished |
| Exhaust Tip Intercooled | No |
| Exhaust Tip Length | 12.875 IN |
| Exhaust Tip Material | 304 Stainless Steel |
| Exhaust Tip Quantity | 2 |
| Exhaust Tip Resonated | No |
| Exhaust Tip Shape | Round |
| Exhaust Tip Wall | Single Wall |
| Exit Style | Dual Out Rear |
| Finish | Aluminized |
| Gasket Or Seal Included | No |
| Grade Type | Performance |
| Hangers Included | Yes |
| Heat Shield Included | No |
| Inlet Diameter | 2.50 IN |
| Inlet Type | Flanged |
| Main Piping Diameter | 2.50 IN |
| Mounting Bracket Included | No |
| Muffler (Left) Body Height | 5.00 IN |
| Muffler (Left) Body Length | 13.50 IN |
| Muffler (Left) Body Width | 10.00 IN |
| Muffler (Left) Type | Chambered |
| Muffler (Right) Body Height | 5.00 IN |
| Muffler (Right) Body Length | 13.50 IN |
| Muffler (Right) Body Width | 10.00 IN |
| Muffler (Right) Type | Chambered |
| Muffler Body Material | Aluminized Steel |
| Muffler Body Shape | Oval |
| Muffler Finish | Black High-Temperature Paint Finish |
| Muffler Flanged Inlet | Yes |
| Muffler Flanged Outlet | No |
| Muffler Included | Yes |
| Muffler Inlet Connection | Loose Flange |
| Muffler Inlet Inside Diameter | 2.50 IN |
| Muffler Inlet Outside Diameter | 2.63 IN |
| Muffler Outlet Connection | Slip-Fit |
| Muffler Outlet Quantity | 1 |
| Muffler Part Number | Kit Only |
| Muffler Quantity | 2 |
| Muffler Series | Super 40 Series |
| Muffler Type | Chambered |
| part type | Exhaust System |
| Pipe Color | Silver |
| Pipe Material | Aluminized Steel |
| Product Type | Exhaust System |
| Sound Level | Moderate |
| Spring Bolt Kit Included | No |
| Tail Pipe Outlet Outside Diameter | 2.50 IN |
| Tail Pipe Quantity | 2 |
| Tail Pipe Tapered Outlet | No |
| Type | Cat-Back |
| Valve Included | No |
| Valve Type | Not Applicable |
| Warning | California Proposition 65 |
California Proposition 65 warning applies to this product. www.P65Warnings.ca.gov
Features
- Easy Installation
Installation
Free install support from the Trucks R Us tech team, for you or your shop.
Overview
For the person who is looking for a complete Flowmaster® cat-back dual exhaust system with an aggressive tone. With easy fit in mind, this American Thunder® exhaust system features mandrel-bent 2.50-inch aluminized steel tubing for maximum performance and includes a pair of specially selected Super 40® Series performance mufflers for a deep powerful sound. The custom tailpipes feature added clearance and exit in the factory location with large 3.00-inch polished tips. The system uses the factory hanger locations for an easy install and delivers a moderate to aggressive interior and exterior tone, best suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage and are designed for an easy fit. The system includes all necessary parts, hardware and instructions for an easy installation you can do at home. Covered by our 3-year Limited Warranty. If you prefer a full stainless steel system covered by our Lifetime Limited Warranty, check out our cat-back exhaust system #817312.
Questions
Will this fit my truck?
Select your truck at the top of the page and the fit check will confirm it. If your exact trim is not listed, call 866-235-4715 or live chat and a fitment specialist will check it before you order.
Do you help with installation?
Yes. Our technical team helps you or your shop with installation and troubleshooting after delivery, on top of the manufacturer’s support.
What if the part has a problem?
We work the warranty claim with the manufacturer on your behalf, within the manufacturer’s warranty policy.
Can I return it?
Most items can be returned within 30 days. See our return policy for details.
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About Flowmaster
Manufacturer of performance exhaust systems, mufflers, performance air intakes, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices... Shop all Flowmaster