I had a dyno tune done using the Cobb access port which I thought made a difference but the sprint booster just seems to have made the car a lot more responsive. In saying that, there are not a lot of tuning shops available in my area maybe someone with more experience with tuning 370's might get better results. But for the price I feel that the sprint booster has made for a much more spirited drive.
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09 Touring/Nav 6MT Carbon Silver STS Turbo
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