Sorry for the noob question, I'm still new at this. I want to upgrade the fuel system, high pressure pump, bigger rail, injectors, and one step colder plugs. But the internals and turbo are all OE, is this ok to do? Will I blow the motor or damage any internals? I would of course get it tuned after, I need one anyway, I did install ETS upper/lower ICP, GFB TMS BOV, stage 2 short ram Takeda pod intake, and 3" turbo back exhaust, running lvl 2 Cobb access port tune. If not a fuel upgrage what would be next? I don't know if theres kind of an order so you mess anything up. Again please forgive my ignorance lol

 

There is no problem to do it that is th reason you have to get it tune. Check a lot of guys with their setups making a lot of power with stock turbo and engine in the inside. My setups right know is ets intake, ets intercooler with all the piping, walbro 255, PTE 1200 injectors, grimmspeed 3 port, megan 02 housing, HKS exhaust completely, spoolinup coil n plug. I will tune my car next week for the first time 91 oct and E85. Stock turbo and engine. Is all about the tune.

 

Ok cool beans, now which would get done first between the pump, rail, and injectors? Or would you just do them all at once?

 

You need to get it tuned though, so you have to do it all at the same time. It's kind of a waste to JUST upgrade the fuel system though.

 

I agree as well, the tune is one of the key elements in gaining the most WHP out of the mods you have.