Ok, so I was just wondering, do you have to have a turbo to get blow-off valves? Also, do you have to have a manual? And are there any other requirements?
A blow off valve releases the excess pressure from your forced induction system when you close the throttle plate. It prevents turbo surge. If you install one on your naturally aspirated vehicle, all it will do is get you laughed at. As for the manual, READ IT! Blow off valves have nothing to do with the transmission, so automatic or manual, makes no difference. Word of advise: Don't work on or modify your car. You'll make it slower at the very least.
I'm a girl.....you don't have to have a turbo, any type of fast car will get you blown off.