Skip to content

Free Shipping & Easy Returns

Sales (855) 895-TRUK

Flowmaster American Thunder Header Back Exhaust System


Collections: Performance

Part: ds_BDXN_17654

Availability: Special order, usually ships in 2-3 weeks. However, if the manufacturer has this item in stock we can normally drop ship it directly to you within 3-5 business days. Contact us and we can get you an accurate ETA before placing an order.

Price: $672.95

Free Shipping for all order over $99
Payment methods
  • PayPal
  • Venmo

100% secure and protected payments

Flowmaster's American Thunder crossmember-back exhaust system for the 1967 - 1972 GM C10/C15 1/2 ton 2WD (Coil Spring) 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 in. mandrel bent aluminized tubing and all the hardware necessary for a great fitting installation. (Stainless tips sold separately). 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 Part Fits:

Year Make Model Submodel
1967 Chevrolet C10 Pickup
1968 Chevrolet C10 Pickup
1969 Chevrolet C10 Pickup
1970 Chevrolet C10 Pickup
1971 Chevrolet C10 Pickup
1972 Chevrolet C10 Pickup
1967 GMC C15/C1500 Pickup
1968 GMC C15/C1500 Pickup
1969 GMC C15/C1500 Pickup
1970 GMC C15/C1500 Pickup
1971 GMC C15/C1500 Pickup
1972 GMC C15/C1500 Pickup
Content for specifications
Content for warranty information

Flowmaster's American Thunder crossmember-back exhaust system for the 1967 - 1972 GM C10/C15 1/2 ton 2WD (Coil Spring) 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 in. mandrel bent aluminized tubing and all the hardware necessary for a great fitting installation. (Stainless tips sold separately). 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 Part Fits:

Year Make Model Submodel
1967 Chevrolet C10 Pickup
1968 Chevrolet C10 Pickup
1969 Chevrolet C10 Pickup
1970 Chevrolet C10 Pickup
1971 Chevrolet C10 Pickup
1972 Chevrolet C10 Pickup
1967 GMC C15/C1500 Pickup
1968 GMC C15/C1500 Pickup
1969 GMC C15/C1500 Pickup
1970 GMC C15/C1500 Pickup
1971 GMC C15/C1500 Pickup
1972 GMC C15/C1500 Pickup

Content for specifications

Content for warranty information