just bought a brand new Apexi auto timer of e-bay any one know much about these, are they any good and are they easy to fit?

Darren

 

got mine couple of months back, useful little device. installation is pretty straight forward, get the right harness, one wire to the o2 sensor, one to ground and one to hand brake. set up the afr/o2 voltage, and you will be able to monitor roughly the fuel mixture.