Thread: Do any of these aftermarket products increase fuel efficiency
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Old 06-15-2004, 11:08 AM
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I did the exhaust and intake. Maybe one mpg improvement. As with most I think your habits change when you hear that V8 rumble.
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2004 Lux with 6 inch Fabtech with tie rods, 38 inch MT's, 4:88 gears, and some minor engine tweaks.
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