New Item that is universal and provides some good information is the GReddy Informeter. It comes in black or silver, and provides the following info:

Read Up to 25 pieces of information:
Communicate with the factory ECU to red up to Channels. Like: Speedometer, RPM, Water Temp, Ignition Timing, Injector Rate, Intake Air Temperature., Fuel Temp., Air Flow Voltage, Intake Manifold Press., O2 Sensor Voltage, A/F, Battery Voltage, Throttle Position. WGV, ATF Temp., EGR Temp., Gear Position, 4WD ratio, Exhaust Temp.

Simple Plug & Play Installation:
Just Plug-Iin the appropriate cable into your vehicle's Diagnostic port, under the dash (ISO 14230 or old Nissan fault diagnosis connector) And for vehicles which use OBD2 ports, a cigarette lighter plug powers up the unit.

Easy to see Color LCD screen:
By adopting a color screen, monitoring numerous values is easy. Key warning point values, are highlighted to call attention to them.

Monitor, Record adn Playback:
Not only does it monitor, but it Records and Playbacks Info. Data log up to 6 pieces of information simultanelusly. Recording resolution can be selected from fine to smoothing.

We have a limited amount of these in stock in each color, and as an exclusive to Cobalt SS board, we will upgrade you to free 3 day shipping!

http://dezod.com/pd_greddy_intelligent.cfm

 

I was actually looking at that the other day.

 

It does quite a bit of nice data. Several other vehicle owners like some of the functions like air intake temp and such.

 

Silver left.........

 

Does it measure boost or HP?

 

I was told by GReddy it will for a stock turbo car.


BTW, only silver left.