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    • American Thunder Crossmember-Back Exhaust System Fits 1967-1974 Mopar A-Body Cars With V8 Engine Aggressive To Moderate Sound Flowmaster
    • American Thunder Crossmember-Back Exhaust System Fits 1967-1974 Mopar A-Body Cars With V8 Engine Aggressive To Moderate Sound Flowmaster
    • American Thunder Crossmember-Back Exhaust System Fits 1967-1974 Mopar A-Body Cars With V8 Engine Aggressive To Moderate Sound Flowmaster
    • American Thunder Crossmember-Back Exhaust System Fits 1967-1974 Mopar A-Body Cars With V8 Engine Aggressive To Moderate Sound Flowmaster
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    Flowmaster Fits 1967-1974 Mopar A-Body cars with V8 engine. - Aggressive to moderate sound 817585

    Vendor: Flowmaster
    Part Number: 817585
    Save $163
    Sale Price $1,299.95 Regular Price $1,462.95

    Currently out of stock.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
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    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.


    Flowmaster Fits 1967-1974 Mopar A-Body cars with V8 engine. - Aggressive to moderate sound 817585


    Specifications:

    Description_ABR SYS 67-74 MO
    Description_SHO SYS 67-74 MOPAR A-BO
    Description_INV 67-74 MOPAR A-BODY 2.50" AMT 409S
    Description_ASC Fits 1967-1974 Mopar A-Body, such as Dodge Dart, Demon, Plymouth Barracuda, Duster, Valiant with V8 engine. Including convertibles.
    Description_DES Flowmaster American Thunder Crossmember-Back Exhaust System
    Description_EXT Fits 1967-1974 Mopar A-Body cars with V8 engine. - Aggressive to moderate sound
    Description_MKT 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.
    Description_FAB Premium Quality
    Description_FAB Improved Horsepower, Torque and Engine Efficiency
    Description_FAB Delta Flow Technology
    Description_FAB Super 40 Sound Level
    Description_ABR SYS 67-74 MO
    Description_SHO SYS 67-74 MOPAR A-BO
    Description_INV 67-74 MOPAR A-BODY 2.50" AMT 409S
    Description_ASC Fits 1967-1974 Mopar A-Body, such as Dodge Dart, Demon, Plymouth Barracuda, Duster, Valiant with V8 engine. Including convertibles.
    Description_DES Flowmaster American Thunder Crossmember-Back Exhaust System
    Description_EXT Fits 1967-1974 Mopar A-Body cars with V8 engine. - Aggressive to moderate sound
    Description_MKT 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.
    Description_FAB Premium Quality
    Description_FAB Improved Horsepower, Torque and Engine Efficiency
    Description_FAB Delta Flow Technology
    Description_FAB Super 40 Sound Level
    Brand Flowmaster
    California Proposition 65 Yes
    California Proposition 65 Chemical Name Nickel (Metallic)
    California Proposition 65 Chemical Name Chromium (hexavalent compounds)
    CARB (California) Compliant Yes
    Catalytic Converter Included No
    2874 0
    Category Exhaust
    3728 Flat Band
    1882 Yes
    Emission Code 5
    Exhaust Series American Thunder
    9874 Clamp-On
    Exhaust Tip Quantity Sold Separately
    1161 0
    10980 Round
    9870 Dual Out Rear
    200 Natural
    353 No
    3390 Performance
    4364 Yes
    Heat Shield Included No
    Inlet Diameter 2.50
    596 Weld-On
    9871 2.50
    92 Yes
    11021 5.00
    11022 13.50
    11023 10.00
    11064 Chambered
    11048 5.00
    11049 13.50
    11050 10.00
    11073 Chambered
    4371 10.00
    9884 5.00
    1892 13.50
    4372 409 Stainless Steel
    4373 Oval
    9882 Black High-Temperature Paint Finish
    4367 No
    4368 No
    Muffler Included Yes
    9962 Slip-Fit
    4365 2.50
    4366 2.63
    9963 Slip-Fit
    4375 1
    Muffler Part Number Kit Only
    4374 2
    Muffler Series Super 40 Series
    1174 Chambered
    part type Exhaust System
    3530 409 Stainless Steel
    Product Type Exhaust System
    Sound Level Aggressive / Moderate
    4377 No
    Sub Category Exhaust and Tail Pipes
    4369 2.50
    4376 2
    Tail Pipe Quantity Dual
    4370 No
    Type Crossmember-back
    6014 No
    2126 Not Applicable
    Warning California Proposition 65
    Pipe Color Silver
    Drive 2WD
    9885 10.00
    Brand Flowmaster
    California Proposition 65 Yes
    California Proposition 65 Chemical Name Nickel (Metallic)
    California Proposition 65 Chemical Name Chromium (hexavalent compounds)
    CARB (California) Compliant Yes
    Catalytic Converter Included No
    2874 0
    Category Exhaust
    3728 Flat Band
    1882 Yes
    Emission Code 5
    Exhaust Series American Thunder
    9874 Clamp-On
    Exhaust Tip Quantity Sold Separately
    1161 0
    10980 Round
    9870 Dual Out Rear
    200 Natural
    353 No
    3390 Performance
    4364 Yes
    Heat Shield Included No
    Inlet Diameter 2.50
    596 Weld-On
    9871 2.50
    92 Yes
    11021 5.00
    11022 13.50
    11023 10.00
    11064 Chambered
    11048 5.00
    11049 13.50
    11050 10.00
    11073 Chambered
    4371 10.00
    9884 5.00
    1892 13.50
    4372 409 Stainless Steel
    4373 Oval
    9882 Black High-Temperature Paint Finish
    4367 No
    4368 No
    Muffler Included Yes
    9962 Slip-Fit
    4365 2.50
    4366 2.63
    9963 Slip-Fit
    4375 1
    Muffler Part Number Kit Only
    4374 2
    Muffler Series Super 40 Series
    1174 Chambered
    part type Exhaust System
    3530 409 Stainless Steel
    Product Type Exhaust System
    Sound Level Aggressive / Moderate
    4377 No
    Sub Category Exhaust and Tail Pipes
    4369 2.50
    4376 2
    Tail Pipe Quantity Dual
    4370 No
    Type Crossmember-back
    6014 No
    2126 Not Applicable
    Warning California Proposition 65
    Pipe Color Silver
    Drive 2WD
    9885 10.00


    This Part Fits:

    Year Make Model Submodel Notes
    1967 Dodge Dart 270
    1967 Dodge Dart 270
    1968 Dodge Dart 270
    1968 Dodge Dart 270
    1968 Dodge Dart 270
    1968 Dodge Dart 270
    1967 Dodge Dart Base
    1967 Dodge Dart Base
    1968 Dodge Dart Base
    1968 Dodge Dart Base
    1968 Dodge Dart Base
    1968 Dodge Dart Base
    1969 Dodge Dart Base
    1969 Dodge Dart Base
    1969 Dodge Dart Base
    1969 Dodge Dart Base
    1970 Dodge Dart Base
    1970 Dodge Dart Base
    1971 Dodge Dart Base
    1971 Dodge Dart Base
    1971 Dodge Dart Base
    1972 Dodge Dart Base
    1972 Dodge Dart Base
    1972 Dodge Dart Base
    1973 Dodge Dart Base
    1973 Dodge Dart Base
    1973 Dodge Dart Base
    1974 Dodge Dart Base
    1974 Dodge Dart Base
    1969 Dodge Dart Custom
    1969 Dodge Dart Custom
    1969 Dodge Dart Custom
    1969 Dodge Dart Custom
    1970 Dodge Dart Custom
    1970 Dodge Dart Custom
    1971 Dodge Dart Custom
    1971 Dodge Dart Custom
    1971 Dodge Dart Custom
    1972 Dodge Dart Custom
    1972 Dodge Dart Custom
    1972 Dodge Dart Custom
    1973 Dodge Dart Custom
    1973 Dodge Dart Custom
    1973 Dodge Dart Custom
    1974 Dodge Dart Custom
    1974 Dodge Dart Custom
    1971 Dodge Dart Demon
    1971 Dodge Dart Demon
    1971 Dodge Dart Demon
    1972 Dodge Dart Demon
    1972 Dodge Dart Demon
    1972 Dodge Dart Demon
    1971 Dodge Dart Demon 340
    1972 Dodge Dart Demon 340
    1967 Dodge Dart GT
    1967 Dodge Dart GT
    1968 Dodge Dart GT
    1968 Dodge Dart GT
    1968 Dodge Dart GT
    1968 Dodge Dart GT
    1969 Dodge Dart GT
    1969 Dodge Dart GT
    1969 Dodge Dart GT
    1969 Dodge Dart GT
    1968 Dodge Dart GTS
    1968 Dodge Dart GTS
    1968 Dodge Dart GTS
    1968 Dodge Dart GTS
    1969 Dodge Dart GTS
    1969 Dodge Dart GTS
    1969 Dodge Dart GTS
    1969 Dodge Dart GTS
    1971 Dodge Dart Special
    1971 Dodge Dart Special
    1971 Dodge Dart Special
    1972 Dodge Dart Special
    1972 Dodge Dart Special
    1972 Dodge Dart Special
    1973 Dodge Dart Special
    1973 Dodge Dart Special
    1973 Dodge Dart Special
    1974 Dodge Dart Special
    1974 Dodge Dart Special
    1974 Dodge Dart Special Edition
    1974 Dodge Dart Special Edition
    1973 Dodge Dart Sport
    1973 Dodge Dart Sport
    1973 Dodge Dart Sport
    1974 Dodge Dart Sport
    1974 Dodge Dart Sport
    1973 Dodge Dart Sport 340
    1974 Dodge Dart Sport 360
    1969 Dodge Dart Swinger
    1969 Dodge Dart Swinger
    1969 Dodge Dart Swinger
    1969 Dodge Dart Swinger
    1970 Dodge Dart Swinger
    1970 Dodge Dart Swinger
    1971 Dodge Dart Swinger
    1971 Dodge Dart Swinger
    1971 Dodge Dart Swinger
    1972 Dodge Dart Swinger
    1972 Dodge Dart Swinger
    1972 Dodge Dart Swinger
    1973 Dodge Dart Swinger
    1973 Dodge Dart Swinger
    1973 Dodge Dart Swinger
    1974 Dodge Dart Swinger
    1974 Dodge Dart Swinger
    1969 Dodge Dart Swinger 340
    1970 Dodge Dart Swinger 340
    1967 Plymouth Barracuda Base
    1967 Plymouth Barracuda Base
    1967 Plymouth Barracuda Base
    1968 Plymouth Barracuda Base
    1968 Plymouth Barracuda Base
    1968 Plymouth Barracuda Base
    1968 Plymouth Barracuda Base
    1968 Plymouth Barracuda Base
    1969 Plymouth Barracuda Base
    1969 Plymouth Barracuda Base
    1969 Plymouth Barracuda Base
    1969 Plymouth Barracuda Base
    1970 Plymouth Duster 340
    1971 Plymouth Duster 340
    1972 Plymouth Duster 340
    1973 Plymouth Duster 340
    1974 Plymouth Duster 360
    1970 Plymouth Duster Base
    1970 Plymouth Duster Base
    1971 Plymouth Duster Base
    1971 Plymouth Duster Base
    1972 Plymouth Duster Base
    1972 Plymouth Duster Base
    1973 Plymouth Duster Base
    1973 Plymouth Duster Base
    1974 Plymouth Duster Base
    1974 Plymouth Duster Base
    1971 Plymouth Scamp Base
    1972 Plymouth Scamp Base
    1973 Plymouth Scamp Base
    1974 Plymouth Scamp Base
    1968 Plymouth Valiant 100
    1968 Plymouth Valiant 100
    1968 Plymouth Valiant 100
    1969 Plymouth Valiant 100
    1969 Plymouth Valiant 100
    1969 Plymouth Valiant 100
    1967 Plymouth Valiant Base
    1970 Plymouth Valiant Base
    1970 Plymouth Valiant Base
    1971 Plymouth Valiant Base
    1971 Plymouth Valiant Base
    1971 Plymouth Valiant Base
    1972 Plymouth Valiant Base
    1972 Plymouth Valiant Base
    1972 Plymouth Valiant Base
    1973 Plymouth Valiant Base
    1973 Plymouth Valiant Base
    1973 Plymouth Valiant Base
    1974 Plymouth Valiant Base
    1974 Plymouth Valiant Base
    1974 Plymouth Valiant Brougham
    1974 Plymouth Valiant Brougham
    1967 Plymouth Valiant Signet
    1968 Plymouth Valiant Signet
    1968 Plymouth Valiant Signet
    1968 Plymouth Valiant Signet
    1969 Plymouth Valiant Signet
    1969 Plymouth Valiant Signet
    1969 Plymouth Valiant Signet
    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
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    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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