Once Improved Rigidity has been installed, it is permanent I'm afraid. I am planning on buying this car in the next week or two (currently on 3.4 million credits, but there are 2 or 3 LMP cars I want to acquire so I'm saving up) so once I have it, I will tune it up for DS3 and hopefully it will work on your car still.
Edit: just thinking, You will have to re-tune the suspension up so its linked in with the Rigidity to get the car to behave as it did before. Spring rates are a good place to start, Camber angle will certainly help and a play with the LSD will help rotation at speed.
Last edited: Jun 29, 2014