i fail to see how they can linearly promise more power AND more MPG with each of their Stages
for Cayman or Cayman S, Panamera its the same story
2007 or 20018
Turbo vs non turbo
2.7 or 5 liter engine
Doesn't matter,
Stage 1 20bhp 1mpg
Stage 2 40bhp 3mpg
Stage 3 60bhp 5mpg
i bet you need bigger muffler bearings after this mod