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Flowmaster American Thunder Header Back Exhaust System 17120

Flowmaster American Thunder Header Back Exhaust System 17120
Flowmaster American Thunder Header Back Exhaust System 17120Flowmaster American Thunder Header Back Exhaust System 17120Flowmaster American Thunder Header Back Exhaust System 17120Flowmaster American Thunder Header Back Exhaust System 17120
$1,038.99 ea
NEWARRIVING SOONEstimated Ship Date 08/26/2022 (If Ordered Today)15 available from HOLLEY PERFORMANCE PRODUCTS as of 08/15/2022
Model: 3256291
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 2
STORE PICKUP
[More Info]
For the person who is looking for a complete header-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. American Thunder systems deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation.
Features:
  • Mandrel Bent 16 Gauge Aluminized Tubing
  • Moderate to Aggressive Exterior Exhaust Tone
  • Includes Hangers And Hardware For Easy Installation
  • Connects After Factory Catalytic Converter
  • Premium Flowmaster Quality
  • 3 Year Limited Warranty
Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations
Installation Notes:
Fits 1964-1972 Chevrolet El Camino and GMC Sprint with V8 engine. Does not include factory manifold downpipes or header reducers

About Flowmaster

Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.

Downloads:

Download Name File Size
fm_warranty_general.pdf88.58KB
FM_Warranty_General.pdf88.58KB
NAFTA_COO-2013.pdf105.94KB
17120.pdf126.55KB
17120_instructions.pdf2.58MB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine Fitment Notes
Chevrolet El Camino Base 1968 6.5L / 396 / V8
5.3L / 327 / V8
5.0L / 307 / V8
4.1L / 250 / L6
3.8L / 230 / L6
5.4L / 327 / V8
5.7L / 350 / V8
Dual; Dual Side Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/50 Series(TM) SUV Mufflers/3.0 in. Stainless Tips;Legal On Non-Emissions Controlled Vehicles Or For Race Use
Chevrolet El Camino Base 1969 6.5L / 396 / V8
5.3L / 327 / V8
5.0L / 307 / V8
4.1L / 250 / L6
3.8L / 230 / L6
5.7L / 350 / V8
Dual; Dual Side Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/50 Series(TM) SUV Mufflers/3.0 in. Stainless Tips;Legal On Non-Emissions Controlled Vehicles Or For Race Use
Chevrolet El Camino Base 1970 7.4L / 454 / V8
6.6L / 402 / V8
5.0L / 307 / V8
4.1L / 250 / L6
6.5L / 396 / V8
6.6L / 400 / V8
5.7L / 350 / V8
Dual; Dual Side Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/50 Series(TM) SUV Mufflers/3.0 in. Stainless Tips;Legal On Non-Emissions Controlled Vehicles Or For Race Use
Chevrolet El Camino Base 1971 7.4L / 454 / V8
6.6L / 402 / V8
5.0L / 307 / V8
4.1L / 250 / L6
5.7L / 350 / V8
6.6L / 400 / V8
Dual; Dual Side Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/50 Series(TM) SUV Mufflers/3.0 in. Stainless Tips;Legal On Non-Emissions Controlled Vehicles Or For Race Use
Chevrolet El Camino Custom 1968 5.3L / 327 / V8
5.0L / 307 / V8
5.7L / 350 / V8
Dual; Dual Side Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/50 Series(TM) SUV Mufflers/3.0 in. Stainless Tips;Legal On Non-Emissions Controlled Vehicles Or For Race Use
Chevrolet El Camino Custom 1969 5.3L / 327 / V8
5.0L / 307 / V8
5.7L / 350 / V8
Dual; Dual Side Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/50 Series(TM) SUV Mufflers/3.0 in. Stainless Tips;Legal On Non-Emissions Controlled Vehicles Or For Race Use
Chevrolet El Camino Custom 1970 7.4L / 454 / V8
6.6L / 402 / V8
5.0L / 307 / V8
6.6L / 400 / V8
5.7L / 350 / V8
Dual; Dual Side Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/50 Series(TM) SUV Mufflers/3.0 in. Stainless Tips;Legal On Non-Emissions Controlled Vehicles Or For Race Use
Chevrolet El Camino Custom 1971 7.4L / 454 / V8
6.6L / 402 / V8
5.0L / 307 / V8
5.7L / 350 / V8
6.6L / 400 / V8
Dual; Dual Side Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/50 Series(TM) SUV Mufflers/3.0 in. Stainless Tips;Legal On Non-Emissions Controlled Vehicles Or For Race Use
Chevrolet El Camino SS 1969 6.5L / 396 / V8 Dual; Dual Side Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/50 Series(TM) SUV Mufflers/3.0 in. Stainless Tips;Legal On Non-Emissions Controlled Vehicles Or For Race Use
Chevrolet El Camino SS 1970 7.4L / 454 / V8
6.6L / 402 / V8
6.6L / 400 / V8
Dual; Dual Side Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/50 Series(TM) SUV Mufflers/3.0 in. Stainless Tips;Legal On Non-Emissions Controlled Vehicles Or For Race Use
Chevrolet El Camino SS 1971 7.4L / 454 / V8
6.6L / 402 / V8
5.7L / 350 / V8
6.6L / 400 / V8
Dual; Dual Side Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/50 Series(TM) SUV Mufflers/3.0 in. Stainless Tips;Legal On Non-Emissions Controlled Vehicles Or For Race Use
Chevrolet El Camino 1972 7.4L / 454 / V8
6.6L / 402 / V8
5.0L / 307 / V8
4.1L / 250 / L6
5.7L / 350 / V8
6.6L / 400 / V8
Dual; Dual Side Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/50 Series(TM) SUV Mufflers/3.0 in. Stainless Tips;Legal On Non-Emissions Controlled Vehicles Or For Race Use

Specifications:

2WD/4WD 2WD
California Proposition 65 Chemical Name Chromium (hexavalent compounds)
California Proposition 65 Chemical Name 1 Nickel (Metallic)
California Proposition 65 Chemical Name 2 Chromium (hexavalent compounds)
California Proposition 65 Required Yes
Emission Code 5
Exhaust Series American Thunder
Exhaust Type Dual
Exit Position Dual Side
Exit Style Straight
Heat Shield No
Heat Shield Attached No
Inlet Diameter 2.500 in.
Inlet Diameter (in) 2.5
Inlet Inside Diameter N/A
Material Aluminized Steel
Muffler Count 2
Muffler Part Number 52558
Muffler Quantity 2
Muffler Series Super 50 Series
Outlet Diameter 2.500 in.
Outlet Diameter (in) 2.5
Outlet Outside Diameter 2.500 in.
Part Type Exhaust System Kit
Single Dual Dual
Single or Dual Dual
Sound Level Moderate/Aggressive
System Type Header Back
Tail Pipe Diameter 2.500 in.
Tip Diameter 3.000 in.
Tip Diameter (in) 3
Tip Quantity 2
Tubing Diameter 2.500 in.
Tubing Diameter (in) 2.5
WARNING CA Proposition 65 WARNING: Cancer and Reproductive Harm
Warranty Time 36 Months

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