Flowmaster
Flowmaster 63-66 GM C10 American Thunder SS Crossmember-Back Exhaust System
Why this price?
$949.95 is MSRP, the lowest price Flowmaster lets us list it at. Additionally, Pro members get 3% to 35% back on most parts.
Special Order
This part is still available to order. Once you place your order, we’ll submit it directly to Flowmaster, and they’ll ship it straight to you.
Delivery times can vary depending on the brand, so we can’t guarantee an exact arrival date. What we can guarantee is that we’ll stay on top of your order, monitor its progress, and keep you updated until it reaches your door.
Special-order items are typically not kept in stock by most retailers. By ordering through us, your order is placed directly with Flowmaster, assuring you get the part as quickly as possible.
Want to get an estimated delivery timeframe before ordering? Contact us through our contact page, and we’ll be happy to find out for you.
Not sure it fits? Read our tips.
Fitment tips
Fitment can come down to more than year, make and model. Sometimes the sub-model decides, so start with the fitment table below.
- Drive type. If your car is all-wheel drive, make sure the part is for all-wheel drive, not rear-wheel drive.
- Engine size. For engine parts, make sure the engine size on the product matches your engine.
- Transmission. Manual and automatic cars often take different parts.
- Body style. Sedan or hatch, two-door or four-door, cab and bed length on trucks.
Manufacturer data can sometimes have imperfections. Still not sure? We are happy to help.
Send us a message and we will confirm the fit.
Couldn't load pickup availability
This American Thunder exhaust system is specifically designed for 1963-1966 Chevrolet C10 and GMC 1000 series 2-wheel drive, non X-Frame V8 trucks without the torsion bar front suspension. The system is perfect for the person looking for an aggressive to moderate exterior and interior sound level. Starting just after factory manifold downpipes or a set of headers, this exhaust system comes complete with a built-in H-pipe crossover and all mandrel bent 2.50-inch 409 stainless steel tubing that helps maximize the flow of the exhaust pulses for better performance and the added durability of stainless steel. The Super 44 Series performance mufflers will give any V8 a deep rumble with that classic Flowmaster tone. This system comes with your choice of three tailpipe exits, straight out the rear, side exit behind each rear tire, or dumped behind the rear tires. The system includes all hardware necessary for an at home installation. This exhaust system is covered by our Lifetime Limited Warranty. Fits both short and long wheelbase trucks.
- H-Pipe Style Crossover Pipe Improves Performance and Reduces Interior Sound
- 2.5-Inch Mandrel Bent Tubing Improves Exhaust Flow for Better Performance
- 409 Stainless Steel Construction adds Corrosion Resistance and Durability
- Includes all Necessary Hangers and Hardware for an at Home Installation
- Super 44 Series Mufflers Give You a Deep, Classic Muscle Truck Sound
- 3 Exit Options Allow You to Customize the Look of Your Truck
- Backed by Flowmaster’s Lifetime Limited Warranty
- Fits both Short Bed and Long Bed Trucks
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1963-1966 | Chevrolet | C10 Pickup | Base |
| 1966 | GMC | 1000 | Base |
| 1963-1965 | GMC | 1000 Series | Base |
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