WHY?

The Accessport is the world's best selling, most flexible, and easiest to use ECU upgrade solution for your Volkswagen GTI. Unlock power hidden within the vehicle by replacing conservative factory settings with more aggressive calibrations. Follow our staged upgrade path with pre-loaded Off The Shelf (OTS) maps or use custom mapping for any modification level. It's the last engine management solution you'll ever need.

Stage1 93
Peak Gains* +12.8% HP / +18.6% TQ
Largest Gains* +17.1% HP / at 4900 / +22.2% TQ at 4000

Stage1 High boost / Stage1+SF 93
Peak Gains* +13.2% HP / +24.7% TQ
Largest Gains* +28.2% HP / +23.3% TQ at 4300 RPM

*Peak gains are measured as the difference between the highest points of the two plots. *Largest gains are measured as the largest gain at any single point between the two plots. Results may vary. Power as tested on 2010 GTI using these identical calibrations. Generally speaking, the 91 octane calibration has a richer fuel curve and a less aggressive ignition advance map to help compensate for 91 octane fuel and/or less than ideal atmospheric conditions. The map designed for 93 octane is the most aggressive.