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Flowmaster American Thunder Header Back Exhaust System 817104
Flowmaster American Thunder Header Back Exhaust System 817104 Flowmaster American Thunder Header Back Exhaust System 817104 Flowmaster American Thunder Header Back Exhaust System 817104 Flowmaster American Thunder Header Back Exhaust System 817104

Flowmaster American Thunder Header Back Exhaust System 817104

$1,062.99 ea
Model:3146952
Condition: NEW
Availability:Backordered until 12/30/2021
Out of stock at HOLLEY PERFORMANCE PRODUCTS as of 09/24/2021
Fitment:
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
Shipping Note:Oversize 2
Qty:

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No Brokerage or Duties - Canadian Owned & Operated - Shipped from Canada to your Door - Easy to Navigate Website - Access to New, Used & Discontinued Parts - Full Time Staff to Answer your Questions.

Disclaimer

Muscle Cars & Classics always recommends professional installation of our products. Buyer assumes risk of damage caused by improper installation.

For the person who is looking for a complete Header-back dual exhaust system. These systems are mandrel bent for maximum performance and include specially selected mufflers. This American Thunder system delivers a moderate interior and exterior tone and is 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 409 Stainless Tubing
  • Limited Lifetime Warranty
  • Moderate Exterior Exhaust Tone
  • Incl. Hangers and Hardware For Easy Installation
  • Header Back System
  • Dual Out Rear Exit
  • Dyno Tuned for Maximum Performance
  • Premium Flowmaster Quality
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:
Convertible models require 3/8-inch of shims on the factory X-brace for clearance of the exhaust tubing. Connectors for factory manifolds or headers not included.

Downloads:

Download Name File Size
fm_warranty_general.pdf88.58KB
FM_Warranty_General.pdf88.58KB
NAFTA_COO-2013.pdf105.94KB
817104.pdf93.38KB
817104_instructions.pdf2.97MB

Videos:

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 Camaro Base 1968 5.3L / 327 / V8
5.4L / 327 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Camaro Base 1969 5.3L / 327 / V8
5.4L / 327 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Camaro Base 1974 5.7L / 350 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Camaro LT 1974 5.7L / 350 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Camaro RS 1968 5.3L / 327 / V8
5.4L / 327 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Camaro RS 1969 5.3L / 327 / V8
5.4L / 327 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Camaro SS 1968 6.5L / 396 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Camaro SS 1969 6.5L / 396 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Camaro 1967 6.5L / 396 / V8
5.3L / 327 / V8
4.9L / 302 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Camaro 1970 6.6L / 402 / V8
5.0L / 307 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Camaro 1971 6.6L / 402 / V8
5.0L / 307 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Camaro 1972 6.6L / 402 / V8
5.0L / 307 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Camaro 1973 5.0L / 307 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Chevy II 1968 6.5L / 396 / V8
5.3L / 327 / V8
5.4L / 327 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Chevrolet Nova 1969 6.5L / 396 / V8
5.0L / 307 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Chevrolet Nova 1970 6.6L / 402 / V8
5.0L / 307 / V8
6.5L / 396 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Chevrolet Nova 1971 5.0L / 307 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Nova 1972 5.0L / 307 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Nova 1973 5.0L / 307 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Chevrolet Nova 1974 5.7L / 350 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
Pontiac Firebird 350 HO 1969 5.7L / 350 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird 350 1968 5.7L / 350 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird 350 1969 5.7L / 350 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird 400 1967 6.6L / 400 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird 400 1968 6.6L / 400 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird 400 1969 6.6L / 400 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird Base 1967 6.6L / 400 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird Base 1968 6.6L / 400 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird Base 1969 6.6L / 400 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird Base 1970 6.6L / 400 / V8
5.7L / 350 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird Base 1971 5.7L / 350 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird HO 1967 6.6L / 400 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird Trans Am 1969 6.6L / 400 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird 1972 5.7L / 350 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird 1973 5.7L / 350 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac Firebird 1974 5.7L / 350 / V8 Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
Pontiac GTO 1973 7.5L / 455 / V8
6.6L / 400 / V8
Dual; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X-Member Back/H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;Legal On Non-Emissions Controlled Vehicles Or For Race Use
409S Stainless Steel~Does Not Fit Convertibles w/o X-Brace Modification
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 Rear
Exit Style Straight
Heat Shield No
Heat Shield Attached No
Inlet Diameter 2.500 in.
Inlet Diameter (in) 2.5
Inlet Inside Diameter 2.500 in.
Material Stainless Steel
Muffler Count 1
Muffler Part Number Kit Only
Muffler Quantity 1
Muffler Series 80 Series Crossflow
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
System Type Header Back
Tail Pipe Diameter 2.500 in.
Tip Diameter N/A
Tip Quantity 0
Tubing Diameter 2.500 in.
Tubing Diameter (in) 2.5
Type of Exhaust Crossmember-back
WARNING CA Proposition 65 WARNING: Cancer and Reproductive Harm
Warranty Limited Lifetime (Lifetime)

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