I'm the same way, I've gotta mod something on a car, I can't have a stock car. Although I should really leave them alone anymore because I fucked up one of my cars a few years back and the damn thing still doesn't start. It was brand new and I decided I wanted to rebuild the block and put a turbo on it so I took everything out then changed my mind as the guy that was going to help me moved. So I put the engine and tranny back in (figured it'd be easier just to get one from a junk yard) and although Ford told me they were still compatible despite the years of engines being different. Long story short, 6 nearly 7 years later a car with only 10,000 miles on it still doesn't run. And the interior still smells brand new believe it or not