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Does anyone know what mpg reduction I should expect now that I installed a 4.10 ring and pinion in my '04 gt convertible? Jt's an auto and I drive like 50% city, 50% highway.Thanks
yep i get around twenty also. i have the sct chip which also helps with gas mileage. but i did not notice any drop when i put mine in. at the same time As the gears i got the tuner as well.
4.10 gas mileage
