I just pulled this unit off my car, it's a great set up to improve your drag and launch times. Will allow you to build full boost right off the line. The only thing missing is the instruction/installation manual. I have attached this link where it can be viewed and downloaded. [ [ http://www.gizzmoelectronics.com/pdf/Launch%20Interface%20Ver1.03.pdf ] ] Asking $200, local pickup or $10 shipping nationwide.