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Flowmaster American Thunder Cat-back Exhaust System
Part # 817213
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1986-1993 Ford Mustang LX with 5.0L engine. Fits coupes and convertibles. Also fits 1986 Ford Mustang GT with 5.0L engine. - Aggressive sound
Read MorePart # 817213
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Flowmaster American Thunder Cat-back Exhaust System
1986-1993 Ford Mustang LX with 5.0L engine. Fits coupes and convertibles. Also fits 1986 Ford Mustang GT with 5.0L engine. - Aggressive sound
Estimated Ship Date: 08/03/2026
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$868.95
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Our American Thunder® exhaust system for 1986-1993 Ford Mustang LX (Fox body) with the 5.0L engine is a bolt-on emissions legal system. Features free-flowing 2.50-inch mandrel-bent stainless steel inlet pipes flowing into a pair of Super 44® Series mufflers for that deep iconic sound of the 5.0L engine. The 2.50-inch mandrel-bent stainless steel tailpipes use the factory hanger locations for a quick and easy installation and the system is finished off with a pair of long 2.50-inch 304 stainless steel tips for that show car look. Includes all necessary parts, hardware and easy to follow instructions and is covered by our Lifetime Limited Warranty. Note: Fits coupes and convertibles. Also fits 1986 Ford Mustang GT models with 5.0L engine
Features:
- Includes Hangers and Hardware for Easy Installation
- Mandrel-bent 16-gauge Stainless Steel Tubing
- Aggressive Sound Exterior Exhaust Tone
- Dyno Tuned for Maximum Performance
- Super 44 Series Performance Mufflers
- Uses the Factory Hanger Locations
- 304 Stainless Steel Tailpipes
- Lifetime Limited Warranty
- Easy Installation
| Brand | Flowmaster |
|---|---|
| California Proposition 65 | Yes |
| CARB (California) Compliant | Yes |
| Catalytic Converter Included | No |
| Catalytic Converter Quantity | 0 |
| Category | Exhaust |
| Clamping Type | Flat Band |
| Clamps Included | Yes |
| Drive | 2WD |
| Emission Code | 5 |
| Exhaust Series | American Thunder |
| Exhaust Tip Color | Silver |
| Exhaust Tip Connection | Welded |
| Exhaust Tip Cut | Angled |
| Exhaust Tip Diameter | 2.50 IN |
| Exhaust Tip Edge | Slash Cut |
| Exhaust Tip Finish | Polished |
| Exhaust Tip Intercooled | No |
| Exhaust Tip Length | 24.50 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 | Natural |
| Gasket Or Seal Included | No |
| Grade Type | Performance |
| Hangers Included | Yes |
| Heat Shield Included | No |
| Inlet Diameter | 2.50 IN |
| Inlet Type | Clamp-On |
| Main Piping Diameter | 2.50 IN |
| Mounting Bracket Included | No |
| Muffler (Left) Body Height | 4.00 IN |
| Muffler (Left) Body Length | 13.25 IN |
| Muffler (Left) Body Width | 9.50 IN |
| Muffler (Left) Type | Chambered |
| Muffler (Right) Body Height | 4.00 IN |
| Muffler (Right) Body Length | 13.25 IN |
| Muffler (Right) Body Width | 9.50 IN |
| Muffler (Right) Type | Chambered |
| Muffler Body Height | 4.00 IN |
| Muffler Body Length | 13.25 IN |
| Muffler Body Material | 409 Stainless Steel |
| Muffler Body Shape | Oval |
| Muffler Body Width | 9.50 IN |
| 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 44 Series |
| Muffler Type | Chambered |
| part type | Exhaust System |
| Pipe Color | Silver |
| Pipe Material | 409 Stainless Steel |
| Product Type | Exhaust System |
| Sound Level | Aggressive |
| Spring Bolt Kit Included | No |
| Sub Category | Exhaust and Tail Pipes |
| Tail Pipe Outlet Outside Diameter | 2.50 IN |
| Tail Pipe Quantity | 2 |
| Dual | |
| Tail Pipe Tapered Outlet | No |
| Type | Cat-Back |
| Valve Included | No |
| Valve Type | Not Applicable |
| UPC | 700042022427 |
| California Proposition 65 Chemical Name | Chromium (hexavalent compounds) |
| Nickel (Metallic) | |
| Part Number | 817213 |
5
This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
Fits 1986-1993 Ford Mustang LX with 5.0L engine. Fits coupes and convertibles. Also fits 1986 Ford Mustang GT with 5.0L engine.
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*Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.
Some parts are not legal for use in California or other states with similar regulations.