Jaguar F Pace Kits
I've made a request about the overall performance of the F- Pace before and some changes where made, however, since then and installing all 4 after market kits on the vehicle I don't notice much difference in speed or acceleration as such. The kits have made some what of an adjustment to the handling of the vehicle but not much of an impact on the overall performance you'd expect when installing high end kits on to the vehicle.
So the way kits work is simply by allowing access to the highest tier tuning that's available for that particular vehicle. Alongside this, all vehicles come stock with a level 3 engine upgrade already installed. The two main things that affect the way the car delivers power is the Engine Upgrade and the Turbo, with its top speed mainly being contributed by the new gear ratios that the highest transmission upgrade has to offer. So the fact that all vehicles come stock with Level 3 engine tuning does reduce the effect that putting kits onto a car has. As in some cases, the car literally has the engine tuned as high as it can be without kits (E.g Level 3 - with level 4 requiring kits). Hopefully, this brings a bit of insight into this for you.