So I am not pcm tuning guy in anyway shape or form. My car already has headers, a 3" catback, accel ignition box, and next weekend will have a 58mm throttle body/CAI/aluminum elbow. My problem is the PO says the car had a cam and larger injectors put in when he bought the car 8 years prior but he doesn't remember the specs though as his buddy reccomend and did it for him. I know I can probably figure out the injectors pretty simply but I'd rather not pull apart the engine to find out the cam specs. That being said after I finish the bolt ons I'd like to have a tune done. Without knowing the cam specs I probably cant do a mail order tune right? Am I stuck paying for a dyno session/pulling the cam?