Flowmaster
Flowmaster 98 Mustang 5.0/4.6L American Thunder Cat-Back Exhaust System
Why this price?
$849.95 is MSRP, the lowest price Flowmaster lets us list it at. Additionally, Pro members get $93.49 back on this part.
$849.95 − $93.49 = $756.46
Special Order
This part is still available to order. Once you place your order, we’ll submit it directly to Flowmaster, and they’ll ship it straight to you.
Delivery times can vary depending on the brand, so we can’t guarantee an exact arrival date. What we can guarantee is that we’ll stay on top of your order, monitor its progress, and keep you updated until it reaches your door.
Special-order items are typically not kept in stock by most retailers. By ordering through us, your order is placed directly with Flowmaster, assuring you get the part as quickly as possible.
Want to get an estimated delivery timeframe before ordering? Contact us through our contact page, and we’ll be happy to find out for you.
Not sure it fits? Read our tips.
Fitment tips
Fitment can come down to more than year, make and model. Sometimes the sub-model decides, so start with the fitment table below.
- Drive type. If your car is all-wheel drive, make sure the part is for all-wheel drive, not rear-wheel drive.
- Engine size. For engine parts, make sure the engine size on the product matches your engine.
- Transmission. Manual and automatic cars often take different parts.
- Body style. Sedan or hatch, two-door or four-door, cab and bed length on trucks.
Manufacturer data can sometimes have imperfections. Still not sure? We are happy to help.
Send us a message and we will confirm the fit.
Couldn't load pickup availability
Our American Thunder® exhaust system for 1998 Ford Mustang Gt and Cobra models with the 4.6L engine is a bolt-on emissions legal system features free-flowing 2.50-inch aluminized steel mandrel-bent inlet pipes, aluminized steel tailpipes and uses the factory hanger locations for quick and easy installation. The kit comes with a pair of Super 44™ mufflers with that iconic deep and powerful sound. The system is then finished off with a pair of long 2.50-inch 304 stainless steel tips for that show car look. Comes with all necessary hardware and easy to follow instructions.
- Includes Hangers and Hardware for an Easy Installation
- Mandrel-bent 16-gauge Aluminized Steel Tubing
- Super 44 Series Performance Mufflers
- Dyno Tuned for Maximum Performance
- Long Polished Stainless Steel Tips
- Uses the Factory Hanger Locations
- Covered by our 3-Year Warranty
- Moderate Exterior Exhaust Tone
- Quick and Easy Installation
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1998 | Ford | Mustang | GT |
| 1998 | Ford | Mustang | SVT Cobra |
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