I've had the previous generation Blitz Dual turbo timer and it worked fine.My TT currently has a Full Auto turbo timer in it (the newer generation with tiny face and control box that mounts out of sight) and its auto time settings are actually somewhat realistic, much better than the older style blitz timers. If I drive especially hard I might add a minute or two but 99% of the time I let the FATT do its own thing. The newer Full Auto Turbo Timer uses the ignition pulse which is derived through the power wires(Blitz is pretty bright) and uses that, along with one of 6 choices of sensitivity to determine cool down. Cost me $78 for the Blitz Full Auto Turbo Timer + $15 for the harness from Options Auto Salon ( [ www.optauto.com ] ) Big image... 
rich
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