I run the tech II and it cost about $1800 for everything. I purchased it from Top-End Performance because they are a value added dealer. That means they will machine the trigger wheel to your crank and they also machine a special mount for the magnetic pickup. This will save you a tremendous amount of headache in installation. The advantages of the system are noticed whether your car is n/a or turbo. Full control of the fuel and ignition. You can tune performance or you can tune awesome gas mileage.