Im buying an 07 quattroporte grand sport. It's been in a minor accident mainly cosmetic damage. But it went over a curb. Needs rad condesor oil pan. From what I can tell so far. I'm not worried about that. But while I have the car apart I wanna make it go faster lol. Any advice on forced induction. Supercharger or turbo? Any performance parts really. I dont really know where to look for quality parts for it that are not dealer. Thanks for the help.