Flowmaster American Thunder Header-back Exhaust System 817585
Flowmaster American Thunder Header-back Exhaust System 817585
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Overview:
For the person who is looking for a complete Crossmember-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.
Features:
Specs:
Applications:
- 1967-1969 Dodge Dart 273 CID
- 1967-1969 Dodge Dart 383 CID
- 1968-1974 Dodge Dart 318 CID
- 1968-1973 Dodge Dart 340 CID
- 1971-1974 Dodge Dart 360 CID
- 1967-1969 Plymouth Barracuda 318 CID
- 1967-1969 Plymouth Barracuda 383 CID
- 1967-1968 Plymouth Barracuda 273 CID
- 1968-1969 Plymouth Barracuda 340 CID
- 1968-1969 Plymouth Barracuda 426 CID
- 1970-1974 Plymouth Duster 318 CID
- 1970-1973 Plymouth Duster 340 CID
- 1974-1974 Plymouth Duster 360 CID
- 1971-1974 Plymouth Scamp 318 CID
- 1967-1969 Plymouth Valiant 273 CID
- 1968-1973 Plymouth Valiant 340 CID
- 1968-1974 Plymouth Valiant 318 CID
- 1971-1974 Plymouth Valiant 360 CID
Emissions:
- 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.

Policies and FAQs
Return Policy
Fault reasons include but are not limited to:
- Buyer was shipped the wrong product
- Buyer was shipped a damaged product
- The product page had incorrect fitment and the part does not fit the Buyer's vehicle
Opened boxes, plastic bags, and other packaging are not considered damage (excluding single use items such as, but not limited to, liquids, software, and other components that cannot be reused/resealed).
FAQs
|Q. What is an Intermediate Brake Line?
|A. This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.
|Q. What is included in a pre bent brake line kit?
|A. Our kits include all of the solid metal lines for that section of the vehicle
|Q. I need to return something - what's your return policy?
|A. We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.
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Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
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If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.