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Flowmaster 17655-FM American Thunder Crossmember-Back Dual Exhaust System

(1965-1968 Chevrolet Impala; 1966-1968 Chevrolet Caprice)

Manufacturer

Part Number

17655-FM
Sale Price

$1,065.95

In Stock (10)

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Usually delivered within 2 days

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No Hassle Returns

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Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Flowmaster American Thunder Crossmember-Back Exhaust System delivers a powerful combination of performance and sound for your vehicle. This true dual exhaust system features mandrel-bent 16-gauge aluminized steel tubing designed to maximize exhaust flow and reduce backpressure, helping unlock additional horsepower and torque.

Key Features:

  • True dual crossmember-back exhaust configuration for maximum performance
  • Iconic Super 40 Series mufflers produce a deep, powerful, aggressive exhaust note
  • H-pipe crossover design balances exhaust pulses for maximum power and a deep, resonant tone
  • Mandrel-bent 16-gauge aluminized steel tubing maintains consistent diameter for optimal flow
  • Large polished stainless steel oval tips for a premium finished appearance
  • Moderate to aggressive exterior sound level delivers that classic muscle car tone
  • Complete hardware kit includes all necessary hangers and mounting hardware for installation

Installation Notes:

  • Designed for use with aftermarket headers or factory manifolds
  • When using factory manifolds, downpipe kit #81075 is required (sold separately)
  • Does not include header reducers or factory manifold downpipes

Engineered and manufactured in the USA, this Flowmaster American Thunder system combines quality construction with legendary Flowmaster sound. The aluminized steel construction provides excellent corrosion resistance for long-lasting durability, while the polished stainless tips add a touch of style to your vehicle's rear end.

Products specifications

Fits

1965-1968 Chevrolet Impala; 1966-1968 Chevrolet Caprice

Tip Diameter

2.250 in.

Inlet Inside Diameter

2.500 in.

Outlet Outside Diameter

2.500 in.

Heat Shield Attached

No

Color

Black

Material

Aluminized Steel

Shape

Oval

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name

Nickel (Metallic)

Tubing Diameter

2.500 in.

Outlet Diameter

2.500 in.

Muffler Count

2

Exit Position

Dual Rear

Tail Pipe Diameter

2.500 in.

Exhaust Type

Dual

Single or Dual

Dual

System Type

Crossmember Back

Brand

Flowmaster

Catalytic Converter Included

No

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 Cut

Angled

Exhaust Tip Finish

Polished

Exhaust Tip Intercooled

No

Exhaust Tip Material

304 Stainless Steel

Exhaust Tip Quantity

2

Exhaust Tip Resonated

No

Exhaust Tip Shape

Oval

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

Clamp-On

Mount Type

Flanged

Mounting Bracket Included

Yes

Muffler (Left) Body Width

10.00

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 40 Series

Muffler Type

Chambered

Pipe Color

Silver

Pipe Material

Aluminized Steel

Product Type

Exhaust System

Sound Level

Aggressive / Moderate

Spring Bolt Kit Included

No

Sub Category

Exhaust and Tail Pipes

Tail Pipe Quantity

Dual

Tail Pipe Quantity

2

Tail Pipe Tapered Outlet

No

Type

Crossmember-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

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Delivered on time and part was as expected at a fair price. i would buy again from these guys.

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