I'm thinking of getting a different car to drive because I'm REALLY liking my Sentra. I'm wanting to dive into getting more horsepower out of my factory qr25de. Could anyone point me to a good source or sources of performance parts to rebuild or add horsepower to my car please. I would add turbo like a fool but I read the factory qr25de can not handle the horsepower. Any help would be grateful. Thanks in advance. Will check back in a couple days.