Hi I have a fg xr6 turbo I have got it tuned, a high flow cat, a 1000 hp plazmaman cooler and got rid of the crossover and put the air intake where the battery is. Now I need to change the turbo to get more power. I have brought a 3540 and was wondering if I can change the turbo myself and drive it to the tuners or do I have to get them to do it cause im changing the turbo. Cause its the same housing as mine as in inlet and outlet I thought I might b able to get away with it.