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  • Flowmaster 73-74 GM C10/C20 American Thunder Header-Back Exhaust System - 17742
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Flowmaster 73-74 GM C10/C20 American Thunder Header-Back Exhaust System - 17742
Flowmaster 73-74 GM C10/C20 American Thunder Header-Back Exhaust System - 17742
Flowmaster 73-74 GM C10/C20 American Thunder Header-Back Exhaust System - 17742
Flowmaster 73-74 GM C10/C20 American Thunder Header-Back Exhaust System - 17742
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Flowmaster 73-74 GM C10/C20 American Thunder Header-Back Exhaust System - 17742

Exhaust, Mufflers & Tips Catback
Flowmaster
flo17742
In stock
Not CARB compliant. Not legal for sale or use in California on emissions-controlled vehicles.
$956.16 $1,199.95
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. Does not include downpipes for factory manifolds or header reducers. Features & Benefits Does Not Include Header Reducers or Downpipes for Factory Manifolds Super 44 Series Mufflers for Deep Powerful Sound Includes Hangers and Hardware for Installation Mandrel-bent 16-gauge Aluminized Steel Tubing Aggressive to Moderate Exterior Exhaust Tone...
Flowmaster 2.25IN(C)/OUT(O) 40 Series Muffler - 42442
Flowmaster 2.25IN(C)/OUT(O) 40 Series Muffler - 42442
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Flowmaster 93-95 GM K1500 ECB V8 American Thunder Cat-Back Exhaust System - 17473
Flowmaster 93-95 GM K1500 ECB V8 American Thunder Cat-Back Exhaust System - 17473
$1,012.95 $807.26
Flowmaster 73-74 GM C10/C20 American Thunder Header-Back Exhaust System - 17742
SKU: flo17742
Product Details

Everything You Need To Know

Review product information, shipping and returns, and price-match details before you order.

Product Info

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.

Does not include downpipes for factory manifolds or header reducers.

Features & Benefits

  • Does Not Include Header Reducers or Downpipes for Factory Manifolds
  • Super 44 Series Mufflers for Deep Powerful Sound
  • Includes Hangers and Hardware for Installation
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • Aggressive to Moderate Exterior Exhaust Tone
  • Crossmember-Back True Dual Exhaust System
  • H-pipe Crossover for Maximum Power
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In stock items typically ship within 1-3 business days. Most items arrive within 2 business days, but there are situations where it may take up to 5 business days.

Special Order Items:
Special order and out of stock items are product-specific and lead times can vary. Please e-mail us if you are looking for an ETA / Lead Time on a specific product. Special order orders are subject to cancellation if the vendor cannot provide any ETA.

Returns Policy

To start the return process, please e-mail sales@allianceracing.com

Include the following:
Subject "Return for Order#"
Order Number
Part Number
Reason

Returns are eligible for up to 14 days from delivery of items. Accepted refunds can take up to 7-10 business days to process. All refunds are subject to a 25% restocking fee, if opened. Customer may be responsible for return shipping. If 14 days have gone by since your item was delivered, unfortunately we can’t guarantee you a refund or exchange. We reserve the right to deny any return request, based on provided information.

Alliance Racing is not responsible for ensuring part fitment. It is the responsibility of the purchaser to ensure the parts being ordered are the correct fitment for the vehicle intended. Alliance Racing will not accept any returns for incorrect fitment after product is opened.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Shipping

To return your product, mail your product to:
Alliance Racing LLC
8810 Twin Lakes Blvd
Tampa, FL 33614

In many cases, you will be responsible for shipping costs to return your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping will be deducted from your refund.

Depending on your location, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $100, you should consider using a trackable shipping service and/or purchasing Shipping Insurance.

To initiate a price match, please e-mail sales@allianceracing.com with the product information (SKU, URL, & Part Name) and a link to the competitors product page for us to validate the price match eligibility.

Please note that there are cases when we cannot offer a price match, but we will do everything in our power to try to match it. Some manufacturers have Pricing Policies that we have to adhere to.

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