I have had my car for 21000 miles and have installed stillen underdrive pully, gen3 intake, headers, berk highflow cats, FI exhaust, Tecnosquare reflash. I also have the 7spd auto, have driven it to the limits many times and have these observations. I believe the auto tranfers less vibration than the manual in stock or modified form. I LOVE the sound of my car at ALL rpms, its at its best from 5k to 7.5k! I burn no dectable oil, and broke it in hard early (i believe this is best, I think the rings seat earlier and better) 1st oilchange at 500 miles
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