I have a 2003 7.3 powerstorke. its about time to replace my injectors and i want to upgrade. which injectors can i use without having to change or replace anything else? I have a 6 position T.S performance chip on it, a K&N cold air intake, and replaced the stock turbo wheel and turbo housing with an ATS. Want to know which injectors i could use that will give more horsepower and again, without having to replace any other parts.

Thanks

 

Are you willing to have the tunes updated so that you can run single shot injectors? The K&N intake is not well regarded here due to the fact that it can let dirt and debris by/through which will lead to turbo and ring/cylinder wall damage.

 

Yes, I would be willing to update tunes. And I still have my stock intake, so I can always go back to that.

 

If you are looking for greater than stock performance without having to worry about damaging/destroying the transmission, drive shaft, rear end, or suspension:
NEW AC INJECTORS
Talk with Tim, let him know what your desires are, great guy. They have NEW completely stock injectors also for not much more than you'll pay for remans.
http://shop.performanceinjectionsyst...-AP-73-NEW.htm

For more air flow and an inexpensive improvement for the intake that adds a little more noise on a stock turbo:
Riffraff Diesel 6637 Ford 7.3L Powerstroke Intake Filter Kit

 

I'm still trying to correlate the word "upgrade" with the phrase "not stock parts". Of course some things help and may qualify as falling under the guise of an "upgrade" such as adding a charge air cooler to a 1995-1997 Powerstroke, but very few "upgrades" actually make the vehicle better than stock.....especially since most of these supposed parts cause other issues down the line.

 

Especially the "without changing anything else", clause..... One does not happen without the other...

 

"Upgrade" and "better" are subjective.

 

Ok, I have no issue changing out anything else, so what are the best options? Even if I do have to change out the fuel pump or etc... So If i use stage 2 injectors, what else will have to be changed out? And what are some decent stage 2 injectors? I won't be racing the truck, it'll be more for pulling heavy loads for long periods of time.