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Flowmaster 17654 American Thunder Crossmember-Back Dual Exhaust System

(1967-1972 Chevrolet C10 Pickup; 1967-1972 GMC C15/C1500 Pickup)

Part of: Flowmaster American Thunder Crossmember-Back Dual Exhaust System

Other options in this family: Flowmaster 817654 Flowmaster 817200 Flowmaster 817174 Flowmaster 17282 Flowmaster 817412

Manufacturer

Picture for manufacturer Flowmaster

Part Number

17654
12 reviews
Sale Price

$899.95

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Flowmaster American Thunder Crossmember-Back Exhaust System delivers aggressive sound and maximum performance for muscle car enthusiasts. This true dual exhaust system features mandrel-bent 16-gauge aluminized steel tubing designed to maximize exhaust flow and horsepower gains while maintaining durability.

Key Features:

  • Super 44 Series mufflers deliver deep, powerful sound with aggressive to moderate exterior tone
  • H-pipe crossover design balances exhaust pulses for maximum power and performance
  • True dual exhaust configuration from crossmember back
  • Mandrel-bent 16-gauge aluminized steel tubing for smooth flow and corrosion resistance
  • Four tailpipe exit options for custom appearance
  • Complete hardware kit includes hangers and installation hardware
  • Does not include header reducers or downpipes for factory manifolds

This bolt-on exhaust system provides the perfect balance of performance and sound, giving your vehicle the classic American muscle car rumble. Professional installation recommended for proper fitment and optimal performance.

Products specifications

Fits

1967-1972 Chevrolet C10 Pickup; 1967-1972 GMC C15/C1500 Pickup

Brand

Flowmaster

Prop 65

No

Catalytic Converter Quantity

0

Category

Exhaust

Clamping Type

U-Bolt

Clamps Included

Yes

Drive

2WD

Emission Code

5

Exhaust Series

American Thunder

Exhaust Tip Quantity

0

Exhaust Tip Quantity

Sold Separately

Exhaust Tip Shape

Round

Exit Style

Dual Out Side

Exit Style

Dual Out Rear

Finish

Aluminized

Gasket Or Seal Included

No

Grade Type

Performance

Hangers Included

Yes

Heat Shield Included

No

Inlet Diameter

2.50

Inlet Type

Weld-On

Mounting Bracket Included

Yes

Muffler (Left) Type

Chambered

Muffler (Right) Type

Chambered

Muffler Body Material

Aluminized Steel

Muffler Body Shape

Oval

Muffler Finish

Black High-Temperature Paint Finish

Muffler Flanged Inlet

No

Muffler Flanged Outlet

No

Muffler Inlet Connection

Slip-Fit

Muffler Outlet Connection

Slip-Fit

Muffler Outlet Quantity

1

muffler part number

Kit Only

Muffler Quantity

2

Muffler Series

Super 44 Series

Muffler Type

Chambered

Pipe Color

Silver

Pipe Material

Aluminized Steel

Product Type

Exhaust System

Sound Level

Aggressive / Moderate

Spring Bolt Kit Included

No

Tail Pipe Quantity

2

Tail Pipe Quantity

Dual

Tail Pipe Tapered Outlet

No

Truck Bed Length

Short Bed

Truck Bed Length

Long Bed

Type

Crossmember-Back

Valve Included

No

Valve Type

Not Applicable

The site is clear and easy to navigate. With so many places to get what I want online it is easy to make a mistake and buy through a shady site. I was buying an expensive item ($500) and wanted to make sure that I was not going to have issues. I did my research and read many positive reviews before making my purchase through Autoplicity. Autoplicity is as legitimate as they come. Things went very smoothly.

It was very quick and easy and I appreciate the 2nd day air shipping option.

A+, great prices

It was great, you had excellent prices, and the 2nd day shipping was better than most competitors.

Good price.good shipping.

Was fast to find the item that I was looking for.

User friendly

Product was as described, great price and reasonable shipping cost. Shipping was also very quick.

So far, so good - I think I found the product I wanted to order.

I was searching for a CAI for my ford fusion and found it on their web site. Great customer service, and super fast delivery! Thank you again for everything.

Simple and friendly

Had what I wanted. Shipped quickly. Very pleased.

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