I think they are electric. The back of the gauge only has 2 wires, and no vacuum nipple. I think it's specific only to S15's too. You can use the holder in S14's though, but you have to cut the top bit of the plastic to fit.
Hi everyone...
Every day so boring so i thought wanna do something crazy with my car... and saw something on tv that i wanna do...
I wanna make a fire to come out from my mufler... So does anyone know how?? Without...