Unitronic big turbo chipped ecu with new 2001 A4 1.8T big turbo file. Will make over 300awhp on 93 octane fuel with GT2871R elim turbo. It will work with any big turbo all you need are injectors, a 3 bar FPR, and a VR6 MAF housing. I paid $938 for the chip alone and $200 for the ecu. First $900 gets both w/ free shipping. I'm selling the car and buying another house. It has to go!