Checking out Apexi's new turbo timer and a/f ratio combo unit.
Uses our cars stock o2 sensor, is this adaquete for tuning?
What kind of sensor are you guys tapping into?? I liked this turbo timer because it would save me a gauge spot.

This was from their site: A'PEX recommends that the O2 sensor readings be compared to a high grade "tuning" O2 sensor for comparison.

You guys do that??

Thanks;-)

I tune by EGT's almost exclusively. O2's are ok, but EGT's will tell you if your engine is about to melt down.