I was debating between getting a jb4 tune or a real tune when I saw that OV Tuning is going to be selling a new bolt on turbo upgrade. I was wondering what would be the best choice and if a turbo upgrade would void the warranty too.

 

definitely would void warranty.. but if there's a problem, just put the old turbo back and it should be fine

 

If you went the upgraded turbo route, you would also need an appropriate tune. I vote to ditch the warranty!