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when i accelerate from a standstill, i feel and hear a small knock from the gas pedal (only when starting from 1st gear on my AT, tried it on 2nd, and i don't feel the knock there)... my car's stock besides the sri i installed a week ago... is this normal? it's just a knock, and i don't feel any difference in acceleration... what's up with this? anyone have the same problem?

 
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I hear that knock also ( I have an AT). At first, I thought I was just hearing things. I usually hear it when I change the gear from P to D.

 
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Mine does the same thing too, another thing that I noticed one time when I actually had my stereo off, is if it's real quite when I am driving< I can kinda feel my gas pedal wiggle almost like something is grinding.