Skip to Product Info
    • Flowmaster American Thunder Crossmember-Back Exhaust System Fits 1973-1974 Chevrolet And Gmc C10, C20 2Wd With V8 Engines Flowmaster 17742
    • Flowmaster American Thunder Crossmember-Back Exhaust System Fits 1973-1974 Chevrolet And Gmc C10, C20 2Wd With V8 Engines Flowmaster 17742
    • Flowmaster American Thunder Crossmember-Back Exhaust System Fits 1973-1974 Chevrolet And Gmc C10, C20 2Wd With V8 Engines Flowmaster 17742
    • Flowmaster American Thunder Crossmember-Back Exhaust System Fits 1973-1974 Chevrolet And Gmc C10, C20 2Wd With V8 Engines Flowmaster 17742
    • Flowmaster American Thunder Crossmember-Back Exhaust System Fits 1973-1974 Chevrolet And Gmc C10, C20 2Wd With V8 Engines Flowmaster 17742
    • FLO17742.jpg
    • American Thunder Crossmember-Back Exhaust System Fits 1973-1974 Chevrolet And Gmc C10, C20 2Wd With V8 Engines Flowmaster
    • American Thunder Crossmember-Back Exhaust System Fits 1973-1974 Chevrolet And Gmc C10, C20 2Wd With V8 Engines Flowmaster
    • American Thunder Crossmember-Back Exhaust System Fits 1973-1974 Chevrolet And Gmc C10, C20 2Wd With V8 Engines Flowmaster
    • American Thunder Crossmember-Back Exhaust System Fits 1973-1974 Chevrolet And Gmc C10, C20 2Wd With V8 Engines Flowmaster
    Sale!

    Flowmaster American Thunder Crossmember-Back Exhaust System Fits 1973-1974 Chevrolet And Gmc C10, C20 2Wd With V8 Engines Flowmaster 17742

    Vendor: Flowmaster
    SKU: BDXN_17742
    Save $129
    Sale Price $1,024.95 Regular Price $1,153.95
    Free Shipping on Orders Over $99
    Professional, Enthusiast-Driven Customer Support
    International Shipping Available - Contact Us!
    Payment & Security

    Payments are processed through secure, encrypted systems. Your credit card details are never stored or accessible by us.

    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa

    This American Thunder exhaust system was specially designed for 1973-1974 Chevrolet and GMC C10 and C15 1/2 ton and 3/4 ton 2wd trucks and is perfect for the person looking for moderate to aggressive interior and exterior sound levels. The Crossmember-Back exhaust system comes complete with a built-in H-pipe crossover, all mandrel-bent 2.50-inch aluminized steel tubing, a pair of Super 44 Series performance mufflers and your choice of tailpipe exits.

    Either dual out rear under the bumper for a muscular look or dual out the sides behind the rear tires for that classic truck look. The system includes all hardware necessary for installation and is designed to accommodate both long and short wheelbases, with either an automatic or manual transmission and provides adequate clearance for substantially lowered vehicles. The exhaust system is covered by our 3-year Limited Warranty. Notes: Does Not include exhaust tips, header reducer cones or downpipes for factory manifolds.

    • Super 44 Series Mufflers for Deep Powerful Sound
    • Mandrel-bent 16-gauge Aluminized Steel Tubing
    • Includes Hangers and Hardware for Installation
    • Aggressive to Moderate Exterior Exhaust Tone
    • Crossmember-Back True Dual Exhaust System
    • H-pipe Crossover for Maximum Power
    • Does Not Include Header Reducers or Downpipes for Factory Manifolds


    Flowmaster American Thunder Crossmember-Back Exhaust System Fits 1973-1974 Chevrolet And Gmc C10, C20 2Wd With V8 Engines Flowmaster 17742


    Specifications:

    Country of Origin USA
    Sold As Kit
    UPC 700042032341
    Availability Available
    Exhaust Type Crossmember Back
    Exit Style Dual Out Side Dual Out Rear
    Mount Style Flanged
    Shape Oval


    This Part Fits:

    Year Make Model Submodel Notes
    1973 GMC C15/C1500 Pickup
    1974 GMC C15/C1500 Pickup
    1973 GMC C25/C2500 Pickup
    1974 GMC C25/C2500 Pickup
    1973 Chevrolet C10 Pickup
    1974 Chevrolet C10 Pickup
    1973 Chevrolet C20 Pickup
    1974 Chevrolet C20 Pickup
    Shipping Policy

    Cancellations

    Once an order is placed, in most cases it cannot be cancelled as they are sent for fulfillment almost immediately after receiving the order. If there is an ability to cancel the order, the buyer is responsible for the transaction fees charged from the transaction.

    Processing Time

    In-stock orders are typically processed and shipped within 1–2 business days of receiving payment, unless otherwise stated on the product page. Orders placed on weekends or holidays will be processed on the next business day.

    Shipping Costs

    Shipping costs are calculated based on the shipping method selected, the weight and dimensions of the package, and the destination address. You can view the shipping costs for your order during the checkout process before finalizing your purchase.

    Tracking Information

    Once your order has been shipped, you will receive a shipping confirmation email with tracking information. You can use this information to track the status of your package and monitor its delivery progress.

    Delivery Time

    While we make every effort to ensure timely delivery, please note that delivery times may vary due to factors beyond our control, such as weather conditions or carrier delays.

    International Shipping

    For international orders, please be aware that customs duties, taxes, and other fees may apply upon delivery. These additional charges are the responsibility of the recipient and are not included in the shipping cost paid at checkout. Please check with your local customs office for information on potential fees before placing your order.

    Shipping Address

    Please ensure that the shipping address provided during checkout is accurate and complete. We are not responsible for orders shipped to incorrect or undeliverable addresses due to customer error.

    Return Policy

    Return Period

    You have up to 30 days from the date of purchase to return eligible items.

    Condition of the Item

    A 20% restocking fee will apply to cover inspection, processing, and repackaging costs.

    Items must be returned in new, unused condition and include all original packaging, hardware, and documentation.

    Return Shipping

    The cost of return shipping is the responsibility of the buyer unless the item was received damaged, defective, or incorrect.

    Return Authorization

    Before returning any item, please contact our customer service team to obtain a Return Merchandise Authorization (RMA) number. Items returned without an RMA may not be accepted.

    Refund Processing

    Once the returned item is received and inspected, we will initiate the refund process. Please allow 2–5 days for the refund to be processed and credited to the original payment method. Bank processing times may vary.

    Damaged or Defective Items

    If you receive a damaged, defective, or incorrect item, contact us immediately for assistance. We’ll work quickly to resolve the issue or send a replacement.

    Final Sale Items

    Certain items may be marked as Final Sale and are not eligible for return or exchange. These will be clearly noted on the product page.

    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.

    Recently Viewed