The Sound That Started it All
American Thunder® is the ‘original’ Flowmaster sound. In most cases a very aggressive sound level, American Thunder systems use various chambered mufflers to achieve the performance gains and aggressive sound that you want from your car or truck, inside and out. Available in stainless steel or economical aluminized steel, American Thunder systems are a great choice when you want to be heard.
American Thunder® is the ‘original’ Flowmaster sound. In most cases a very aggressive sound level, American Thunder systems use various chambered mufflers to achieve the performance gains and aggressive sound that you want from your car or truck, inside and out. Available in stainless steel or economical aluminized steel, American Thunder systems are a great choice when you want to be heard.
Fitment Information
- Buick Gran Sport (1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972)
- Buick Skylark (1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972)
- Chevy Chevelle (1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972)
- Chevy El Camino (1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972)
- Chevy Malibu (1964, 1965, 1966, 1967)
- Chevy Monte Carlo (1970, 1971, 1972)
- Oldsmobile 442 (1965, 1966, 1967
- Oldsmobile Cutlass (1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972)
- Pontiac GTO (1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972)
- Pontiac LeMans (1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972)
Emissions Compliance
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.
Specs & Features
- 2WD/4WD: 2WD
- California Proposition 65 Required: No
- Emission Code: 3
- Exhaust Series: American Thunder
- Exit Position: Dual Rear Exit
- Heat Shield: No
- Inlet Diameter (in): 2.5
- Material: Aluminized Steel
- Muffler Part Number: 952548
- Muffler Quantity: 2
- Muffler Series: Super 40 Series
- Outlet Diameter (in): 2.5
- Product Type: Exhaust Systems / Kits
- Single Dual: Dual
- Sound Level: Moderate/Aggressive Sound
- System Type: Header-back System
- Tip Quantity: Not Included
- Tubing Diameter (in): 2.5
Product Description
This American Thunder® crossmember-back exhaust system is custom designed for most 1964-1972 GM A-body cars and is for the person looking for a complete 2.50-inch dual exhaust system with a moderately aggressive exterior tone and a moderate interior sound. With easy fit in mind, these aluminized steel systems feature all mandrel-bent tubing, an H-pipe to equalize the exhaust pressures for maximum performance and deep sound and includes a pair of specially selected Super 40™ mufflers. The mandrel-bent 2.50-inch tailpipes tuck up out of the way for maximum clearance and offer you two choices of tailpipe exit styles. Like all Flowmaster® systems, benefits include improved throttle response, power, and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for an easy installation and is covered by our 3-year Limited Warranty.
Features:
- Fits most 1964-1972 GM A-Bodies with V8 engines and aftermarket long tube headers.
- Includes Hangers and Hardware for Easy Installation
- Mandrel-bent 16-Gauge Aluminized Steel Tubing
- Two Exit Style Choices: Slash Cut or Turndown
- Moderate to Aggressive Exterior Exhaust Tone
- Built-in Balance Pipe Equalizes Pressures
- Super 40 Series Performance Mufflers
- Flowmaster Quality & Reliability
- Crossmember-Back System
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.More in this category
Flowmaster Exhaust Systems
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