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  • American Thunder Crossmember-Back Exhaust System Fits 1964-1972 Chevrolet El Camino And Gmc Sprint With V8 Engine, 2.5 Inch Aluminized Pipes Aggressive To Moderate Sound Flowmaster
  • American Thunder Crossmember-Back Exhaust System Fits 1964-1972 Chevrolet El Camino And Gmc Sprint With V8 Engine, 2.5 Inch Aluminized Pipes Aggressive To Moderate Sound Flowmaster
  • American Thunder Crossmember-Back Exhaust System Fits 1964-1972 Chevrolet El Camino And Gmc Sprint With V8 Engine, 2.5 Inch Aluminized Pipes Aggressive To Moderate Sound Flowmaster
  • American Thunder Crossmember-Back Exhaust System Fits 1964-1972 Chevrolet El Camino And Gmc Sprint With V8 Engine, 2.5 Inch Aluminized Pipes Aggressive To Moderate Sound Flowmaster
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  • aggressivemoderatesoundlevel.jpg
  • 17120.jpg
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  • aggressivemoderatesoundlevel.jpg
    • Flowmaster Flowmaster American Thunder Crossmember-Back Exhaust System 17120
    • Flowmaster Flowmaster American Thunder Crossmember-Back Exhaust System 17120
    • Flowmaster Flowmaster American Thunder Crossmember-Back Exhaust System 17120
    • Flowmaster Flowmaster American Thunder Crossmember-Back Exhaust System 17120
    • Flowmaster Flowmaster American Thunder Crossmember-Back Exhaust System 17120
    • FLO17120.jpg
    • American Thunder Crossmember-Back Exhaust System Fits 1964-1972 Chevrolet El Camino And Gmc Sprint With V8 Engine, 2.5 Inch Aluminized Pipes Aggressive To Moderate Sound Flowmaster
    • American Thunder Crossmember-Back Exhaust System Fits 1964-1972 Chevrolet El Camino And Gmc Sprint With V8 Engine, 2.5 Inch Aluminized Pipes Aggressive To Moderate Sound Flowmaster
    • American Thunder Crossmember-Back Exhaust System Fits 1964-1972 Chevrolet El Camino And Gmc Sprint With V8 Engine, 2.5 Inch Aluminized Pipes Aggressive To Moderate Sound Flowmaster
    • American Thunder Crossmember-Back Exhaust System Fits 1964-1972 Chevrolet El Camino And Gmc Sprint With V8 Engine, 2.5 Inch Aluminized Pipes Aggressive To Moderate Sound Flowmaster
    • 17120.jpg
    • 17120_2.jpg
    • 17120_3.jpg
    • aggressivemoderatesoundlevel.jpg
    • 17120.jpg
    • 17120_2.jpg
    • 17120_3.jpg
    • aggressivemoderatesoundlevel.jpg
    Sale!

    Flowmaster Flowmaster American Thunder Crossmember-Back Exhaust System 17120

    Vendor: Flowmaster
    Part Number: 17120
    Save $132
    $1,049.95 $1,181.95

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    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
    International Shipping Available: email sales@berryperformancesales.com for a quote.
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    Product DetailsFAQReviewsRelated Products
    For the person who is looking for a complete Crossmember-Back dual exhaust system with a moderately aggressive tone for their 1964 to 1972 Chevrolet/GMC El Camino/Sprint with a V8 engine. With easy fit in mind, these systems are constructed from 2.50-inch mandrel-bent aluminized steel with a built in H-pipe to equalized the exhaust pressures, eliminates backrap on deceleration and makes maximum power. The system includes a pair of specially selected Super 50 Series mufflers for a deep powerful exterior sound with minimal interior tone and is suited for the enthusiast who wants their performance to be heard, just not inside the cab. The mandrel-bent tailpipes exit at an angle behind the rear wheels and are finished off with large 3.00-inch angle cut polished stainless tips for an aggressive look. 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 Flowmaster American Thunder Crossmember-Back Exhaust System 17120


    Specifications:

    Brand Flowmaster
    Description_ABR SYS 64-72 CH
    California Proposition 65 Yes
    Description_SHO SYS 64-72 CHEV EL CA
    California Proposition 65 Chemical Name Nickel (Metallic)
    Description_INV 64-72 CHEV EL CAMINO/SPRINT AMT
    California Proposition 65 Chemical Name Chromium (hexavalent compounds)
    Description_ASC Fits 1964-1972 Chevrolet El Camino and GMC Sprint with V8 engine.
    CARB (California) Compliant Yes
    Description_DES Flowmaster American Thunder Crossmember-Back Exhaust System
    Catalytic Converter Included No
    Description_EXT Fits 1964-1972 Chevrolet El Camino and GMC Sprint with V8 engine, 2.5" Aluminized pipes - Aggressive to moderate sound
    2874 0
    Description_MKT For the person who is looking for a complete Crossmember-Back dual exhaust system with a moderately aggressive tone for their 1964 to 1972 Chevrolet/GMC El Camino/Sprint with a V8 engine. With easy fit in mind, these systems are constructed from 2.50-inch mandrel-bent aluminized steel with a built in H-pipe to equalized the exhaust pressures, eliminates backrap on deceleration and makes maximum power. The system includes a pair of specially selected Super 50 Series mufflers for a deep powerful exterior sound with minimal interior tone and is suited for the enthusiast who wants their performance to be heard, just not inside the cab. The mandrel-bent tailpipes exit at an angle behind the rear wheels and are finished off with large 3.00-inch angle cut polished stainless tips for an aggressive look. 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.
    Category Exhaust
    Description_FAB Includes Hangers and Hardware for an Easy Installation
    Clamping Type U-Bolt
    Description_FAB Super 50 Series Performance Mufflers Eliminates Drone
    1882 Yes
    Description_FAB Mandrel-bent 16-gauge Aluminized Steel Tubing
    Emission Code 5
    Description_FAB Moderate to Aggressive Exterior Exhaust Tone
    Exhaust Series American Thunder
    Description_FAB Dyno Tuned for Maximum Performance
    9874 Clamp-On
    Description_FAB Polished 3.00-inch Stainless Steel Tips
    9876 Angled
    Description_FAB Includes H-pipe Assembly
    1162 3.00
    Description_ABR SYS 64-72 CH
    9877 Slash Cut
    Description_SHO SYS 64-72 CHEV EL CA
    1163 Polished
    Description_INV 64-72 CHEV EL CAMINO/SPRINT AMT
    9881 No
    Description_ASC Fits 1964-1972 Chevrolet El Camino and GMC Sprint with V8 engine.
    10104 13.00
    Description_DES Flowmaster American Thunder Crossmember-Back Exhaust System
    1164 304 Stainless Steel
    Description_EXT Fits 1964-1972 Chevrolet El Camino and GMC Sprint with V8 engine, 2.5" Aluminized pipes - Aggressive to moderate sound
    1161 2
    Description_MKT For the person who is looking for a complete Crossmember-Back dual exhaust system with a moderately aggressive tone for their 1964 to 1972 Chevrolet/GMC El Camino/Sprint with a V8 engine. With easy fit in mind, these systems are constructed from 2.50-inch mandrel-bent aluminized steel with a built in H-pipe to equalized the exhaust pressures, eliminates backrap on deceleration and makes maximum power. The system includes a pair of specially selected Super 50 Series mufflers for a deep powerful exterior sound with minimal interior tone and is suited for the enthusiast who wants their performance to be heard, just not inside the cab. The mandrel-bent tailpipes exit at an angle behind the rear wheels and are finished off with large 3.00-inch angle cut polished stainless tips for an aggressive look. 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.
    9878 No
    Description_FAB Includes Hangers and Hardware for an Easy Installation
    10980 Round
    Description_FAB Super 50 Series Performance Mufflers Eliminates Drone
    9875 Single Wall
    Description_FAB Mandrel-bent 16-gauge Aluminized Steel Tubing
    9870 Dual Out Side
    Description_FAB Moderate to Aggressive Exterior Exhaust Tone
    200 Aluminized
    Description_FAB Dyno Tuned for Maximum Performance
    353 No
    Description_FAB Polished 3.00-inch Stainless Steel Tips
    3390 Performance
    Description_FAB Includes H-pipe Assembly
    4364 Yes
    Heat Shield Included No
    Inlet Diameter 2.50
    596 Weld-On
    9871 2.50
    92 Yes
    11021 5.00
    11022 17.00
    11023 10.00
    11064 Chambered
    11048 5.00
    11049 17.00
    11050 10.00
    11073 Chambered
    1892 17.00
    4372 Aluminized 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 52558
    4374 2
    Muffler Series Super 50 Series
    1174 Chambered
    part type Exhaust System
    3530 Aluminized 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
    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
    Clamping Type U-Bolt
    1882 Yes
    Emission Code 5
    Exhaust Series American Thunder
    9874 Clamp-On
    9876 Angled
    1162 3.00
    9877 Slash Cut
    1163 Polished
    9881 No
    10104 13.00
    1164 304 Stainless Steel
    1161 2
    9878 No
    10980 Round
    9875 Single Wall
    9870 Dual Out Side
    200 Aluminized
    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 17.00
    11023 10.00
    11064 Chambered
    11048 5.00
    11049 17.00
    11050 10.00
    11073 Chambered
    1892 17.00
    4372 Aluminized 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 52558
    4374 2
    Muffler Series Super 50 Series
    1174 Chambered
    part type Exhaust System
    3530 Aluminized 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


    This Part Fits:

    Year Make Model Submodel Notes
    1964 Chevrolet El Camino Base
    1964 Chevrolet El Camino Base
    1965 Chevrolet El Camino Base
    1965 Chevrolet El Camino Base
    1966 Chevrolet El Camino Base
    1966 Chevrolet El Camino Base
    1966 Chevrolet El Camino Base
    1967 Chevrolet El Camino Base
    1967 Chevrolet El Camino Base
    1967 Chevrolet El Camino Base
    1968 Chevrolet El Camino Base
    1968 Chevrolet El Camino Base
    1968 Chevrolet El Camino Base
    1968 Chevrolet El Camino Base
    1969 Chevrolet El Camino Base
    1969 Chevrolet El Camino Base
    1969 Chevrolet El Camino Base
    1969 Chevrolet El Camino Base
    1970 Chevrolet El Camino Base
    1970 Chevrolet El Camino Base
    1970 Chevrolet El Camino Base
    1970 Chevrolet El Camino Base
    1970 Chevrolet El Camino Base
    1971 Chevrolet El Camino Base
    1971 Chevrolet El Camino Base
    1971 Chevrolet El Camino Base
    1971 Chevrolet El Camino Base
    1972 Chevrolet El Camino Base
    1972 Chevrolet El Camino Base
    1972 Chevrolet El Camino Base
    1972 Chevrolet El Camino Base
    1968 Chevrolet El Camino Custom
    1968 Chevrolet El Camino Custom
    1968 Chevrolet El Camino Custom
    1968 Chevrolet El Camino Custom
    1969 Chevrolet El Camino Custom
    1969 Chevrolet El Camino Custom
    1969 Chevrolet El Camino Custom
    1969 Chevrolet El Camino Custom
    1970 Chevrolet El Camino Custom
    1970 Chevrolet El Camino Custom
    1970 Chevrolet El Camino Custom
    1970 Chevrolet El Camino Custom
    1971 Chevrolet El Camino Custom
    1971 Chevrolet El Camino Custom
    1971 Chevrolet El Camino Custom
    1971 Chevrolet El Camino Custom
    1972 Chevrolet El Camino Custom
    1972 Chevrolet El Camino Custom
    1972 Chevrolet El Camino Custom
    1972 Chevrolet El Camino Custom
    1968 Chevrolet El Camino SS
    1969 Chevrolet El Camino SS
    1970 Chevrolet El Camino SS
    1970 Chevrolet El Camino SS
    1971 Chevrolet El Camino SS
    1971 Chevrolet El Camino SS
    1971 Chevrolet El Camino SS
    1972 Chevrolet El Camino SS
    1972 Chevrolet El Camino SS
    1972 Chevrolet El Camino SS
    1971 GMC Sprint Base
    1971 GMC Sprint Base
    1971 GMC Sprint Base
    1971 GMC Sprint Base
    1972 GMC Sprint Base
    1972 GMC Sprint Base
    1972 GMC Sprint Base
    1972 GMC Sprint Base
    1972 GMC Sprint Custom
    1972 GMC Sprint Custom
    1972 GMC Sprint Custom
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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.

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