Welcome to the TDS.
Bullet proof, that's a tough question.
Not enough info on the engine you have.
What year engine?
Does it have a turbo now?
If it has a turbo, what make is it?
How many miles on the engine?
What do you intend on using the truck for? Just a DD, towing, sled pulling, drag racing.
All those questions answered will get you better choices on what to do.
Contact conestogadiesel dot com for IP and injector up grades, give em a call, they will be glad to inform you.