Basically new COBB flash tuner/gauge monitor for your mk 7-7.5 gti, gli, or audi a3! I only drove with it on the car for about 5,000 miles. Theres also a windshield mount included free of charge. Also let me know if you want a CTS downpipe for an extra $300, it has rougly 8,000 miles on it. I’ll also throw in an O2 sensor spacer with that as well if you’re interested. The part number for the COBB tuner is: AP3-VLK-002. The part number for the CTS downpipe is: CTS-EXH-DP-0014.