sure you might be able to make that but your goingto be pushing the hpop to its limits. if it was a 17* i think a couple have put down 550+. but if it was me i would upgrage to a T500 and be done with it. i like to do my supporing mods first and to me an hpop is a supporting mod.

 

With the hydraulic pump in this set-up (and in general), using all the available volume puts the same or less stress on the pump. Therefore, instead of:
It is more accurately described as: "Allowing a pump to reach it's full potential"

 

what ever you want to call it, i would not do it. the 15* is a baby pump

 

Like I said, no skin off my nose if bajahigh wants to throw away $500.

 

so wat order of mods should i go in if i want 450hp or more hpop turbo or injectors or the chip ?? and wat other mods will i need i already have cold air intake straight piped 4in propane injection

 

chip, intercooler, injectors, hpop, fuel system in that order

 

Gauges are first. Next thing you do is ditch the propane. Propane is for grilling not diesel performance. I would go with tranny mods then, chip, fuel system, then intercooler. Then it depends on what injectors your going to go with. If you go with hybrids you can get by on a stock hpop but its not going to like it. Either way you will benefit from an hpop upgraded. It will give you more power, smoother starts, smoother running engine and it gave me a drop in EGTs