This 2001 Seat Leon has a 1.8-litre turbo petrol engine and an LPG system. Before tuning, it produced 177 hp and 225 Nm on petrol, and 166 hp and 217 Nm on LPG. The customer wanted stronger torque and better pull for everyday driving.

After the Stage 1 calibration, a full LPG run could not be completed: the gas supply cut out at around 4,500 rpm. The petrol run was reported at 183 hp. As a result, the car's post-tuning performance on LPG was not confirmed in this test.

The video shows the dyno runs on both fuels and the work in progress.