Flowmaster 817585 Header-Back System 409S for 67-74 Mopar A-Body

Flowmaster 817585 Header-back System 409S - Dual Rear Exit - American Thunder® -Moderate/Aggressive

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.

Product Specification:

• 2WD/4WD: 2WD
• Automotive Item Grade: High Performance Part
• Exhaust series: American Thunder®
• Exit Position: Dual Rear Exit
• Heat shield: None
• Inlet diameter (inches): 2.50
• Material: Stainless Steel
• Muffler part number: Kit Only
• Muffler quantity: 2
• Muffler series: Super 40 Series
• Outlet diameter (inches): 2.50
• Single/Dual: Dual
• Sound level: Moderate/Aggressive Sound
• System type: Header-back System
• Tip quantity: None
• Tubing diameter (inches): 2.50

Fitments:

• 1968 Dodge Dart 270 V8, 5.6L
• 1968 Dodge Dart 270 V8, 5.2L
• 1968 Dodge Dart 270 V8, 4.5L
• 1968 Dodge Dart 270 V8, 6.3L
• 1967 Dodge Dart 270 V8, 6.3L
• 1967 Dodge Dart 270 V8, 4.5L
• 1967 Dodge Dart 270 V8, 5.2L
• 1967-1974 Dodge Dart Base V8, 5.2L
• 1967-1969 Dodge Dart Base V8, 4.5L
• 1967-1969 Dodge Dart Base V8, 6.3L
• 1971-1974 Dodge Dart Base V8, 5.9L
• 1968-1973 Dodge Dart Base V8, 5.6L
• 1969-1973 Dodge Dart Custom V8, 5.6L
• 1969-1974 Dodge Dart Custom V8, 5.2L
• 1969 Dodge Dart Custom V8, 4.5L
• 1969 Dodge Dart Custom V8, 6.3L
• 1971-1974 Dodge Dart Custom V8, 5.9L
• 1971-1972 Dodge Dart Demon V8, 5.2L
• 1971-1972 Dodge Dart Demon V8, 5.9L
• 1971-1972 Dodge Dart Demon V8, 5.6L
• 1971-1972 Dodge Dart Demon 340 V8, 5.6L
• 1968-1969 Dodge Dart GT V8, 5.6L
• 1968-1969 Dodge Dart GT V8, 5.2L
• 1968-1969 Dodge Dart GT V8, 4.5L
• 1967 Dodge Dart GT V8, 6.3L
• 1968-1969 Dodge Dart GT V8, 6.3L
• 1967 Dodge Dart GT V8, 4.5L
• 1967 Dodge Dart GT V8, 5.2L
• 1968-1969 Dodge Dart GTS V8, 6.3L
• 1968-1969 Dodge Dart GTS V8, 5.6L
• 1968-1969 Dodge Dart GTS V8, 5.2L
• 1968-1969 Dodge Dart GTS V8, 4.5L
• 1971-1974 Dodge Dart Special V8, 5.2L
• 1971-1974 Dodge Dart Special V8, 5.9L
• 1971-1973 Dodge Dart Special V8, 5.6L
• 1974 Dodge Dart Special Edition V8, 5.2L
• 1974 Dodge Dart Special Edition V8, 5.9L
• 1973 Dodge Dart Sport V8, 5.6L
• 1973-1974 Dodge Dart Sport V8, 5.2L
• 1973-1974 Dodge Dart Sport V8, 5.9L
• 1973 Dodge Dart Sport 340 V8, 5.6L
• 1974 Dodge Dart Sport 360 V8, 5.9L
• 1974 Dodge Dart Sport 360 V8, 5.9L
• 1969-1973 Dodge Dart Swinger V8, 5.6L
• 1969-1974 Dodge Dart Swinger V8, 5.2L
• 1969 Dodge Dart Swinger V8, 4.5L
• 1971-1974 Dodge Dart Swinger V8, 5.9L
• 1969 Dodge Dart Swinger V8, 6.3L
• 1970-1973 Plymouth Duster 340 V8, 5.6L
• 1974 Plymouth Duster 360 V8, 5.9L
• 1974 Plymouth Duster 360 V8, 5.9L
• 1970-1974 Plymouth Duster Base V8, 5.2L
• 1970-1973 Plymouth Duster Base V8, 5.6L
• 1974 Plymouth Duster Base V8, 5.9L
• 1971-1974 Plymouth Scamp Base V8, 5.2L
• 1968-1969 Plymouth Valiant 100 V8, 5.6L
• 1968-1969 Plymouth Valiant 100 V8, 5.2L
• 1968-1969 Plymouth Valiant 100 V8, 4.5L
• 1968-1969 Plymouth Valiant Base V8, 4.5L
• 1971-1974 Plymouth Valiant Base V8, 5.9L
• 1967 Plymouth Valiant Base V8, 4.5L
• 1970-1974 Plymouth Valiant Base V8, 5.2L
• 1970-1973 Plymouth Valiant Base V8, 5.6L
• 1974 Plymouth Valiant Brougham V8, 5.2L
• 1974 Plymouth Valiant Brougham V8, 5.9L
• 1968-1969 Plymouth Valiant Signet V8, 5.6L
• 1968-1969 Plymouth Valiant Signet V8, 5.2L
• 1968-1969 Plymouth Valiant Signet V8, 4.5L
• 1967 Plymouth Valiant Signet V8, 4.5L

Note: 1967 to 1974 Mopar A-Body, fits Dodge Dart and Plymouth Valiant with a V8 engine including the convertible models.