all i have is bolt-ons to my car along with slp headers and corsa catback. I wanna retune my car, but will the diablosport change my air/fuel enough to factor in for the headers or do i need to have someone tune the car professionally. i was thinking about getting the diablosport cause i know if it will do a great job with my bolt ons, but i just wasn't sure if it can customize it enough for the headers also.

 

What you can do is related to what you want to spend. If you want to make general changes and get your car closer to optimal performance, then you should go the hand-held route. If you want more control over the PCM to dial in the timing and AFR "dead-on-*****" accurate, then you'll need some software and a laptop. Either way, you're highly encouraged to get your hands on a WBO2 - bought, borrowed, or stolen. Just don't steal mine.