Flowmaster 17742 American Thunder Header Back Exhaust System
SKU: 37434280656

Flowmaster 17742 American Thunder Header Back Exhaust System

Sale price$512.55 Regular price$569.50
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

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Description

Flowmaster 17742 American Thunder Header Back Exhaust SystemFlowmaster's American Thunder Crossmember back exhaust system for the 73 87 GM C10 C20, and 3 4 ton, 2WD pickup truck is perfect for the person looking for moderate to aggressive sound levels with all of the performance benefits that you would expect from Flowmaster. This Crossmember back DOR DOS (Dual Out Rear, Dual Out Side) system features dual Super 44 Series mufflers, 2. 50" mandrel bent aluminized tubing and accommodates both dual and single

Flowmaster's American Thunder Crossmember-back exhaust system for the 73-87 GM C10/C20, ½ and 3/4 ton, 2WD pickup truck is perfect for the person looking for moderate to aggressive sound levels with all of the performance benefits that you would expect from Flowmaster. This Crossmember-back DOR/DOS (Dual Out Rear, Dual Out Side) system features dual Super 44 Series mufflers, 2.50" mandrel bent aluminized tubing and accommodates both dual and single exhaust crossmembers. This system is routed in a fashion that accommodates both long and short wheelbases with automatic or manual transmissions, and provides adequate clearance for substantially lowered vehicles. The exhaust system is covered by Flowmaster's 3 Year Limited Warranty. This system is not emissions compliant on vehicles that were originally equipped with catalytic converters. Note: This system is not designed as a direct bolt-on and will require the user to fabricate pipes to connect to manifolds or headers.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 37434280656

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Erin K. Ellison
Belleville, US
★★★★★ 4
Not firm. But nice and fluffy
Size: King (U.S. Standard), Number of Items: 2
Very fluffy. Not firm.
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Reviewed in the United States on August 9, 2025
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Kristina Borrajero
Lake Worth, US
★★★★★ 5
Great pillows
Size: King (U.S. Standard), Number of Items: 4
These pillows are a must buy. Very soft and sturdy. It feels like a cloud when I lay on them. And I love how long they are too. The price for the amount was a huge bonus too.
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Reviewed in the United States on April 21, 2026
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Niara Singh
Battle Creek, US
★★★★★ 5
I only use these pillows now
Size: King (U.S. Standard), Number of Items: 2
We’ll see if they keep their shape so far they have. They cradle my head well and I don’t wake up with neck pain anymore like I used to with my other pillows. Even my JC Penny feather down pillows lost shape so I switched to these and they are perfect. Extra large is great for me as I tend to roll around when I sleep. Perfect for back and side sleepers like me.
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Reviewed in the United States on April 17, 2026
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Michelle
Phoenix, US
★★★★★ 3
Worth the money
Size: Queen (U.S. Standard), Number of Items: 2
So these pillows are for sure hotel pillows, great filling quality, support(not so much), no odor, they are worth the money, soft but just not the support I was looking for. Nice fluffy, hotel pillows
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Reviewed in the United States on April 24, 2026
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Victoria R Mitchell
Lowell, US
★★★★★ 5
5
Size: King (U.S. Standard), Number of Items: 2
All night sleeping
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Reviewed in the United States on May 29, 2026

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