I have a used HPP+ with a power tunning cartridge. It is for a 96/97 LT1 engine, and was used on my 97 Z28. The power tuning cartridge is a small plug in cartridge used to tune for upgrades such as cam/headers/supercharger. I ordered it from Hypertech directly. I have the original box, as well as instructions for the Hypertech. The HPP+ is the same as the HPP3, and is great for changing the fan temps, calibrate the speedo for gear/tire upgrades and many other items. Hypertech claims that the tuning cartridge works well with the LT4 hotcam and the cc305, as well as the headers and supercharger. I am selling because I went with PCMforless tuning, the cartridge did not work well for my specific cam. I'm asking for $200 plus shipping for both the cartridge and the HPP+, or I'm willing to split the two and take $150 for the HPP+ and $100 for the cartridge. The tuning cartridge was $250 by itself from Hypertech.

 

The tuning cartridge will only work in your car. They are set up by vin number. I know because I got a used one for like $10 and it wouldn’t work. The HPP displayed a wrong vin error when the cartridge was put in. Just trying to save you some problem if someone bought it from you.

 

ok, scratch the chip, anyone interested in the HPP+? Is the price too high? Make me an offer!!