Does Flowmaster exhaust increase gas mileage?
Flowmaster 817574 Exhaust System Kit
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Open Feb 25, 2025 - 09:38 AM
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Feb 25, 2025 - 09:38 AM
Flowmaster exhaust systems are primarily designed to enhance a vehicle's sound and performance, particularly by improving exhaust flow and reducing back pressure. While some users report minor improvements in gas mileage due to these performance enhancements, the impact on fuel efficiency is generally minimal and varies depending on the specific vehicle and driving conditions. For significant improvements in gas mileage, other modifications or driving habit changes are usually more effective.
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Flowmaster 817574 Exhaust System Kit
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, Fits 1986 to 2004 Ford Mus...
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