Question by JEFFREY H: Do any bolt on engine accessories for pickup trucks really help with fuel economy?
I have seen some accessories that claim to help with gas mileage. For example: cold air intakes, performance headers, cat-back exhaust, throttle body spacers, replacing a clutch driven fan with an electric, etc. The companies all claim increased performance and mileage, but are they on the level?
Best answer:
Answer by Dark Chocolate
I’m not sure, but i would researdch and try them out
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