i recently installed a gauge and my take on it is that its just a piece of crap :thumbsup: . the needle points to 10 psi vac when power off, and the power lines dont zero it (they only light the assembly). i hooked it up to both the vac line (bypass) and the vac stack/vac tree whatever but both of them wont read over 10 psi vacuum (full throttle) and it is at 30 psi vacuum at idle... im no turbo expert but something tells me thats not right. i have a low pressure turbo, meaning that without fiddling with the mbc (0 added boost), i should be reading 7 ish psi boost and a little below 0 at idle and cruise... the gauge did only cost $15 on ebay, i think i was ripped off (seeing as it doesnt function correctly). any opinions?

thanks much,
alex