The durametric or knockoff is better since it has all the codes, however you need the info to decipher all those numbers to specify what is within spec.
A bluetooth or wireless wifi OBD2 is also usefull for the codes and for interfacing with applications on your mobile device, like track lap timers etc.
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"It broke because it wants to be Upgraded  "
2012 Porsche Performance Driving School - SanDiego region
2001 Boxster S, Top Speed muffler, (Fred's) Mini Morimotto Projectors, Tarret UDP,
Short Shifter, Touch Screen Dual Din Radio, 03 4 Bow glass Top (DD & Auto-X since May 17,2012)
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