B6 A4
Stage 1 - 1.8T AMB
USD $349.99
Previously known as Gonzo Tuning Stage 2 STAGE 1: 215HP / 250LB-TQ Info: Designed to run 18psi..
Stage 2 - 1.8T AMB
USD $399.99
Previously known as Gonzo Tuning Stage 2+ STAGE 2: 235HP / 280LB-TQ Info: Our most advanced/ag..
Tiptronic TCU Software (B5/B6/C5)
USD $400.00
STAGE 1 Info: Tiptronic TCU software Precisely Engineered to run combined with a GTS Stage 1..
Stage 3 - 1.8T AMB
USD $549.99
STAGE 3 Info: Program designed to be run with a turbocharger upgrade. Includes exclusive features..
Stage 4 - Big Turbo/Custom 1.8T
USD $649.99
Gonzo Tuning STAGE 4 Info: Custom tuning tailored to your own car. A connecting rod upgrade is re..