[SledHead24]

I am looking to replace all of my injectors, and am currently looking at Warren's. I know I will get the premium spool valves, but not sure what size injectors. The truck is stock besides a turbo back exhaust and Blessed Performance's Ecobeast Street Tune. Should I just stick with stock size injectors or go to the 155's(with stock or 30% nozzle?)?

 

[waggonerj]

If you're staying stock turbo I'd go 155/30 or 175/0.

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[Racer71]

On stock turbo the smaller ones are sufficient. I had the larger ones on my old truck and it took a bit of ficm tuning on my end via HP tuners to get it where I was happy with performance and smoke levels which were almost nonexistent when I was done tuning. Dyno results spoke for themselves.

 

[joe blow]

If you're remaining stock and have no plans of upgrading turbo size, then just stay stock or take waggonerj's advice.

Anything above stock parameters (or 175's +), WDI recommends custom tunes to make them work/idle correctly and a RR for warranty reasons.

Good luck