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what are some ways to improve fuel mileage over the factory numbers? lets face it gas is not going to be 1.50 ever again. so what are some parts or modifications to do to a car thats in good running condition that meets factory supplied fuel numbers?. ive heard a bunch of different things you can do. heres a list.
1. upgraded plugs wires and coil packs
2.cold air intakes/ram air intakes
3. performance exhaust/cat back exhaust
4. high flow cat converter
5.performance 02 sensors
6. upgraded 3 row radiators
7. fuel additives/engine additives
8.computer chips/mod chips/ ecu chips
this is a short list of things i have been told can help increase fuel economy now are any of these viable ways of increasing mpg or are we being misled?looking forward to reading your replys
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