I have one question for the turbo guys, when i start from first gear i hear something like a grind or like transmission griending or something like that, is more like a feel than a sound, does the turbo causes this? and is this normal? but it only happens while starting from first and at low rpms.. i will be talking to the guy that install it to see if this is normal.. its kind of hard to explain how it feels or how it sounds.. one of my friends said it was a motor mount but i told him no way..
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It is your downpipe rattling against the frame under the car. If everything is tight it should be really really close but not touching but it rattles against that bar that is right in front of it due to the exhaust vibration. if you look underneath your car its right where the downpipe connects to the exhaust piping.