I was reading the www.racerpartswholesale.com magazine and I came across this G-Tech Pro Competition meter. It's different than the regular one. It measures your car's RPMS, has a graphic display that shows RPMs, horsepower and torque graphs for analyzing shift points and engine/driver performance. It also has a shift, traction and cornering light. You can also hook it up to your PC and download stuff. $249.95 or $299.95 with the PC software, cable and power adapter.

 

I've seen it before, only downside is that you have to wire it in. That's why half the people have the G-Tech Pros - no hassle to switch from car to car. If you don't mind wiring it in, look at the Apex'I ones, they're nice as hell!
-Cyrus

 

This has been posted before,,,