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Flowmaster 817673 American Thunder Crossmember-Back Dual Exhaust System

(1962-1967 Chevrolet Chevy II)

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

Other options in this family: Flowmaster 817654 Flowmaster 17201 Flowmaster 817200 Flowmaster 817174 Flowmaster 17282

Manufacturer

Picture for manufacturer Flowmaster

Part Number

817673
13 reviews
Sale Price

$1,249.95

In Stock (5)

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Usually delivered within 2 days

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Product Details

The Flowmaster American Thunder Crossmember-Back Exhaust System delivers a commanding presence with its deep, aggressive tone and impressive performance gains. This true dual exhaust system is engineered for enthusiasts who want maximum flow and a distinctive muscle car sound.

Key Features:

  • True dual crossmember-back exhaust configuration for unrestricted flow
  • Super 44 Series mufflers produce a deep, powerful exhaust note with moderate to aggressive exterior sound
  • Mandrel-bent 16-gauge stainless steel tubing maintains consistent diameter for optimal exhaust velocity
  • H-pipe crossover balances exhaust pulses for maximum power and enhanced deep tone
  • Includes all necessary hangers and hardware for bolt-on installation
  • Backed by Flowmaster's Lifetime Limited Warranty

This system is designed to bolt directly to your vehicle's crossmember and does not include header reducers or downpipes for factory manifolds. The stainless steel construction ensures long-lasting durability and corrosion resistance, while the precision mandrel-bent tubing maximizes exhaust flow for improved performance and throttle response.

Products specifications

Fits

1962-1967 Chevrolet Chevy II

Tip Cut

Angle

Tip Finish

Polished

Tip Shape

Round

Inlet Inside Diameter

2.500 in.

Tip Diameter

3.000 in.

Outlet Outside Diameter

3.000 in.

Prop 65

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

California Proposition 65 Chemical Name 2

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name 1

Nickel (metallic)

California Proposition 65 Chemical Name

Nickel (Metallic)

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

Heat Shield Attached

No

Color

Black

Material

Stainless Steel

Shape

Oval

Exit Position

Dual Side

Tubing Diameter

2.500 in.

Outlet Diameter

2.500 in.

Muffler Count

2

Tip Quantity

2

Tail Pipe Diameter

2.500 in.

Exhaust Type

Dual

Tip Material

Stainless Steel

Single or Dual

Dual

Tip Type

Single Wall

Tip Edge Style

Rolled

Tip Length

4.750 in.

Title

Flowmaster 817673 Crossmember-back System - AMT - 62-67 Chevy II Nova - Moderate/Aggressive Sound

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 Color

Silver

Exhaust Tip Connection

Welded

Exhaust Tip Cut

Angled

Exhaust Tip Edge

Rolled Edge

Exhaust Tip Finish

Polished

Exhaust Tip Intercooled

No

Exhaust Tip Length

3.75

Exhaust Tip Material

304 Stainless Steel

Exhaust Tip Quantity

2

Exhaust Tip Resonated

No

Exhaust Tip Shape

Round

Exhaust Tip Wall

Single Wall

Exit Style

Dual Out Side

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

Mount Type

Flanged

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

Sub Category

Exhaust and Tail Pipes

Tail Pipe Quantity

Dual

Tail Pipe Quantity

2

Tail Pipe Tapered Outlet

No

Tip Logo

Embossed

Type

Crossmember-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

fast and easy

It was fast and easy

Good

Went smoothly

You have an user friendly interface and well displayed, most important information about the product. I also appreciate technical information to make sure that I buy right product. I had a very good experience.

Great product, fast shipping...will do business with again! Thank you!

Very Easy

Shipped very quickly and had the best price I could find!

execllent store, price was wonderful and product was top quality. shipping is average, it took 2 days to proccess. I will recommend to friends and use again.

Ordering and checkout was easy with Amazon Pay.

only problem so far is this obnoxious messge .

Quick and easy

easy to use

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