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Flowmaster 817654 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 17201 Flowmaster 817200 Flowmaster 817174 Flowmaster 17282 Flowmaster 817412

Manufacturer

Picture for manufacturer Flowmaster

Part Number

817654
14 reviews
Sale Price

$999.95

In Stock (10+)

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Usually delivered within 2 days

free shipping

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No Hassle Returns

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Flowmaster 817654 American Thunder Crossmember-Back Exhaust System is a true dual exhaust system engineered to deliver maximum performance and an aggressive exhaust note. This complete cat-back system features mandrel-bent 16-gauge stainless steel tubing for optimal exhaust flow and long-lasting durability.

Key Features:

  • Crossmember-back true dual exhaust design for maximum performance gains
  • Super 44 Series mufflers produce a deep, powerful, aggressive to moderate exterior sound
  • H-pipe crossover balances exhaust pulses for maximum horsepower and torque
  • Mandrel-bent 16-gauge stainless steel tubing maintains consistent diameter for unrestricted flow
  • Four tailpipe exit configurations available to suit your style preference
  • Includes all necessary hangers, clamps, and hardware for bolt-on installation
  • Backed by Flowmaster's Lifetime Limited Warranty

The American Thunder series combines Flowmaster's legendary Super 44 muffler technology with precision-engineered tubing to create an exhaust system that enhances both performance and sound. The H-pipe crossover design improves scavenging efficiency while creating a balanced, aggressive tone that lets everyone know you mean business.

Products specifications

Fits

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

Brand

Flowmaster

Prop 65

Yes

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name

Nickel (Metallic)

Catalytic Converter Quantity

0

Category

Exhaust

Clamping Type

Flat Band

Clamps Included

Yes

Drive

2WD

Emission Code

5

Exhaust Series

American Thunder

Exhaust Tip Connection

Clamp-On

Exhaust Tip Quantity

0

Exhaust Tip Quantity

Sold Separately

Exhaust Tip Shape

Round

Exit Style

Dual Out Side

Exit Style

Dual Out Rear

Finish

Natural

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

409 Stainless 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

409 Stainless Steel

Product Type

Exhaust System

Sound Level

Aggressive / Moderate

Spring Bolt Kit Included

No

Tail Pipe Quantity

Dual

Tail Pipe Quantity

2

Tail Pipe Tapered Outlet

No

Truck Bed Length

Long Bed, Short Bed

Type

Crossmember-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

Quick and easy, awesome price.

Quick and easy to order

Order process was good.

Efficient checkout.

Thanks

This was my first order with Autoplicity. Low prices, quick shipping, I'm definitely shopping there again.

Very good

Quick and easy online shopping and check out. Shipping took long because it had to come from a manufacturer. Also considering the part was small shipping costs seemed high. Everything arrived in order though and part seems just right.

I bought 2 pairs of Stainless Steel polished 12x16 mud flaps. I looked at quite a few mud flaps for my Escalade EXT, and these were the only ones I could find that were not plastic or rubber. They are excellent, heavy duty, polished stainless flaps; and mounting hardware was included. They were well packed, shipped fast and at a very reasonable amount. Best of all they were $26.00 cheaper a pair. So I saved $52.00, got fast delivery, and got a very nice product.....Thank you Autoplicity; definitely saved in my favorites....Bill in Pittsburgh, Pa.

Best deals I've found on autoplicity yet. Thanks!

My experience went very well I was pleased an satified

Best price and super fast shipping. Only issue was that their online order status system was really far behind! The system said my order was "pending" and it had been shipped. Later it said "processing" and it was on my doorstep. Not a big deal and certainly better than the opposite (they tell you something has happened when it hasn't) and doesn't keep them from being a 5 star seller in my book.

Shopping experience was good. It's taken quite some time to find Splash Guards for my Raptor that will actually fit properly. Hopefully these are the ones (this is my third attempt).

Sweet price and in stock :

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