Flowmaster 817585 American Thunder Exhaust Kit, 1967-74 Mopar
67-74 Dodge Dart, 70-74 Plymouth Duster, 71-74 Plymouth Scamp, 67-74 Plymouth Valiant
- This item ships directly from the manufacturer. It may take an additional 10 business days for Flowmaster to ship this item.
- This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
For the person who is looking for a complete Header-back dual exhaust system with a performance sound. This system is mandrel bent for maximum performance and includes specially selected mufflers. American Thunder 2.5 In. systems generally deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. The sound level will depend greatly on the engine and level of modification. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.
- Super 50 Sound Level
- Delta Flow Technology
- Improved Horsepower, Torque and Engine Efficiency
- Premium Quality
Application1967-1969 Dodge Dart 383 CID/6.3L V8
1967-1969 Dodge Dart 4.5L V8
1968-1969 Plymouth Valiant
1967-1969 Plymouth Valiant 4.5L V8
1968-1973 Dodge Dart 340 CID/5.6L V8
1970-1973 Plymouth Duster 340 CID/5.6L V8
1968-1973 Plymouth Valiant 340 CID/5.6L V8
1968-1974 Dodge Dart 318 CID/5.2L V8
1971-1974 Dodge Dart 360 CID/5.9L V8
1970-1974 Plymouth Duster 318 CID/5.2L V8
1971-1974 Plymouth Scamp 318 CID/5.2L V8
1968-1974 Plymouth Valiant 318 CID/5.2L V8
1971-1974 Plymouth Valiant 360 CID/5.9L V8
1974 Plymouth Duster 360 CID/5.9L V8
NotesFits 1967 to 1974 Mopar A-Body, fits Dodge Dart and Plymouth Valiant with a V8 engine including the convertible models.
More Like This
Flowmaster 15937 3 Inch U-Fit Universal Dual Exhaust Kit
Flowmaster 15935 2-1/4 Inch U-Fit Universal Dual Exhaust Kit
Flowmaster 15936 2-1/2 Inch U-Fit Universal Dual Exhaust Kit
Truck Mandrel Bend Dual Exhaust Pipe Kit, Mild Steel, 2-1/2 Inch
Universal Stainless Steel Dual Exhaust Mandrel Bend Kit, 2-1/4 Inch
MagnaFlow 10701 Custom Builder Pipe Kit
MagnaFlow 10702 Custom Builder Pipe Kit
MagnaFlow 10703 Custom Builder Pipe Kit
MagnaFlow 15900 Pro Series Exhaust System
MagnaFlow 16755 MF Series Performance Cat Back Exhaust System
Q & A
Maintaining your headers is an important part of any hot rod. Pat gives some tips and demonstrates how well Purple Metal Polish works for keeping your headers looking great.
Our Tru-Ram Exhaust Manifolds are one of our most popular items. Tim provides more details about them and gives you a great look at them.
Tim gives a little bit of history on the Ford Y Block and shows some of the parts we have to offer.
Some basic info on the various exhaust options carried by Speedway Motors.
Information on how to pick the proper header for your project.
Product guru Jeff K. doesn't just limit his revival tendencies to those of the four wheeled variety. He also likes to leave his mark on motorcycles, giving new life to tired old two-wheelers. Follow along as he tackles a 2004 Kawasaki Vulcan.
If you're ready to get your street machine sounding as good as it looks, it's important to know how each muffler will affect your sound and performance. Take a listen and decide which muffler is best for your rod.