While at SEMA this year I always visit the "Showcase of products" area, this is one of the best places to see what is new at the show in a small area. If you have never visited it is well worth it. Anyways this year I noticed multiple companies offering up a OBD2 interface to operate the gauges in the vehicle. The issue I have been having is the GM performace ECU would not provide a proper signal for the Tack to work. I have tried all the suggestions out there and nothing worked especially the MSD pickup that was not worth the money I ended up throwing it away. I just happened to visit the Dakota Digital booth and saw my friend Scott Johnson and we started talking and i mentioned the OBD interface and he informed that they have a similar unit. I obtained a unit the following week and installed it this weekend. It worked right out of the box and made my day. I have been trying to get this going for over a year and finally have the resolution. So anyone that has an LS motor and is having a similar issue try this out it worked for me!

now i can do a burnouts and see the RPMS
The Dakota Digital STA-1000: Late-Model Drivetrain integration has never been simpler! The STA-1000 plugs directly into the OBDII diagnostic connector, providing a user-adjustable traditional Speedometer, Tachometer and Check-Engine output for your choice of aftermarket instruments.
Features:
Fully compatible with common aftermarket electronic speedometers
User selectable output of: 4k, 8k, 16k PPM signals, Sine or Square wave options
/-35% sed signal correction, compensating for tire size or gearing changes
Adjustable 4, 6 or 8 cylinder tachometer signal output
Check Engine light output provides a grounded (-) output to activate a check engine light of your choice
Automatically calibrated output for an aftermarket cruise control can be activated by making connection to the higher-resolution fixed VSS sensor
Small footprint measures 4-3/4"x 3"x 1" making it easy to hide