Basic question

[gtsr515]

Hey Rob, Good question, but your putting the cart before the horse, most people start modifying at the exhaust , which is a good start, but nothing wrong with upgrading your intake system as well or first, BUT, at this point you will not benefit with a larger throttle body until you increase the size of your Mass Air Meter, and injectors have virtually nothing to do with selecting a throttle body, NOW! let me tell you right now you do not need to upgrade injectors, not for a long time, 19lber's will support quite a bit of modification. I suggest a 75mm Pro-M bullitt Mass Air Meter with a nice conical K&N Air filter, then get a 70mm throttle body, and make sure you have your intake hogged out to match, you will also need to either buy a 70mm EGR spacer to match, or match your own. Best thing to do is sit down with a piece of paper and write down your ultimate goals for the car and then go at it from there. I would love to help, keep in touch with a Private Message.

Good Luck!!!!!!