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Flowmaster 17742 | Exhaust System Kit
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Flowmaster 17742 | Exhaust System Kit

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$910.95
Part Number
FLO17742
UPC:
700042032341
Condition:
New
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Description

Flowmaster's American Thunder Crossmember-back exhaust system for the 73-87 GM C10/C20, ½ and 3/4 ton, 2WD pickup truck is perfect for the person looking for moderate to aggressive sound levels with all of the performance benefits that you would expect from Flowmaster. This Crossmember-back DOR/DOS (Dual Out Rear, Dual Out Side) system features dual Super 44 Series mufflers, 2.50" mandrel bent aluminized tubing and accommodates both dual and single exhaust crossmembers. This system is routed in a fashion that accommodates both long and short wheelbases with automatic or manual transmissions, and provides adequate clearance for substantially lowered vehicles. The exhaust system is covered by Flowmaster's 3 Year Limited Warranty. This system is not emissions compliant on vehicles that were originally equipped with catalytic converters. Note: This system is not designed as a direct bolt-on and will require the user to fabricate pipes to connect to manifolds or headers.

BRAND: Flowmaster

FEATURES:

  • 17742; header-back; american thunder kit; exhaust system
  • 1973 to 1987 Chevrolet and GMC C10 (1/2 ton) and C20 (3/4 ton) Pickup Trucks; 2 Wheel Drive Only. Not emissions compliant on vehicles originally equipped with a catalyst system.
  • American Thunder Header Back Exhaust System
  • American Thunder Header Back Exhaust System; Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series™ Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel;
  • Dual Out Rear Exit
  • Dyno Tuned for Maximum Performance
  • Famous Flowmaster sound
  • Header Back System
  • Header-back AMT 73-87 GM C10/C20
  • Holley Performance Emission Code 4: This part is legal for sale or use on Racing Use Only Vehicles. The following vehicles are considered Racing Use Only Vehicles: Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street. WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
  • Incl. Hangers and Hardware For Easy Installation
  • Limited Lifetime Warranty
  • Made in the USA
  • Moderate Exterior Exhaust Tone
  • Multiple Exit Options
  • Patented Delta Flow Technology
  • Premium Flowmaster Quality

SPECIFICS:

ColorBlack
Exhaust SeriesAmerican Thunder
Exhaust TypeDual
Exit PositionDual Out Rear
Exit PositionDual Out Side
Exit StyleStraight
Inlet Diameter2.500 in.
Inlet Inside Diameter2.500 in.
MaterialAluminized Steel
Mount TypeFlanged
Muffler Count2
Muffler SeriesSuper 44
Muffler TypeWelded Baffle
Outlet Diameter2.500 in.
Outlet Outside Diameter2.500 in.
ShapeOval
Single or DualDual
Sound LevelModerate/Aggressive
System TypeHeader Back
Tail Pipe Diameter2.500 in.
Tip DiameterN/A
TitleFlowmaster 17742 Header-back 409S - American Thunder Kit - DOR/S - Mod/Agg Sound
Tubing Diameter2.500 in.
Tubing MaterialAluminized Steel
WARNING CA Proposition 65No

DOWNLOADS:

  • INSTALLATION INSTRUCTIONS

    • APPLICATIONS:

    • 1975-1978 GMC C25
      • Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel;Intended For Race Use Only Not Legal For Use On Vehicles Originally Equipped w/Catalytic Converter
    • 1975-1986 Chevrolet C20
      • Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel;Intended For Race Use Only Not Legal For Use On Vehicles Originally Equipped w/Catalytic Converter
    • 1987-1988 Chevrolet R20
      • Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel;Intended For Race Use Only
    • 1979-1986 GMC C2500
      • Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series(TM) Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel;Intended For Race Use Only Not Legal For Use On Vehicles Originally Equipped w/Catalytic Converter

    Attributes
    Product type:
    Aftermarket
    Features and Benefits:
    This American Thunder exhaust system was specially designed for 1973-1974 Chevrolet and GMC C10 and C15 1/2 ton and 3/4 ton 2wd trucks and is perfect for the person looking for moderate to aggressive interior and exterior sound levels. The crossmembe
    Features and Benefits:
    Moderate Exterior Exhaust Tone
    Features and Benefits:
    Incl. Hangers and Hardware For Easy Installation
    Features and Benefits:
    Header Back System
    Features and Benefits:
    Dual Out Rear Exit
    Features and Benefits:
    Dyno Tuned for Maximum Performance
    Features and Benefits:
    Premium Flowmaster Quality
    Features and Benefits:
    Famous Flowmaster sound
    Features and Benefits:
    Multiple Exit Options
    Features and Benefits:
    Patented Delta Flow Technology
    Features and Benefits:
    Made in the USA
    Features and Benefits:
    Limited Lifetime Warranty
    Brand Description:
    American Thunder Header Back Exhaust System
    Product Description:
    American Thunder Header Back Exhaust System; Dual; Dual Rear Same Side Exit; Incl. 2.5 in. Tubing/Super 44 Series™ Mufflers/H-Pipe/Hdw; Tips Not Included; Aluminized Steel;
    Exhaust Type:
    Dual
    Exit Position:
    Dual Rear Same Side
    Inlet Inside Diameter:
    2.500 in.
    Material:
    Aluminized Steel
    Tip Diameter:
    N/A
    Tubing Diameter:
    2.500 in.
    WARNING CA Proposition 65:
    No
    Tail Pipe Diameter:
    2.500 in.
    Color:
    Black
    Shape:
    Oval
    Inlet Diameter:
    2.500 in.
    Outlet Diameter:
    2.500 in.
    System Type:
    Header Back
    Title:
    Flowmaster 17742 Header-back 409S - American Thunder Kit - DOR/S - Mod/Agg Sound
    Single or Dual:
    Dual
    Exhaust Series:
    American Thunder
    Mount Type:
    Flanged
    Muffler Count:
    2
    Muffler Series:
    Super 44
    Life Cycle Status:
    Available to Order
    Muffler Type:
    Welded Baffle
    Life Cycle Status Description:
    Available to Order - Part is released to customers for ordering.
    Sound Level:
    Moderate/Aggressive
    Item Level GTIN:
    00700042032341
    Tubing Material:
    Aluminized Steel
    Quantity Per Application:
    2
    Outlet Outside Diameter:
    2.500 in.
    Exit Style:
    Straight
    Short Description:
    Exhaust System Kit
    Hazardous Material:
    No
    Minimum Order Quantity:
    1
    Weight - Each (Gross Pounds):
    77.5500
    Height - Each (Inch):
    17.7000
    Length - Each (Inch):
    63.9000
    Width - Each (Inch):
    15.8000



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