Eagleye
Tinkerer
Correct. You will not need either at this stage. Both will need upgraded if you decide to do a turbo swap, go e85, etc.
AEM Intake and Downpipe Combo
- Thread starter OrtizSti
- Start date
Correct. You will not need either at this stage. Both will need upgraded if you decide to do a turbo swap, go e85, etc.
I appreciate each and every one of you, thank you for all the advice and guidance, I couldn't be any prouder of this community
As a side note if you ever decide to upgrade the fuel pump, that is one mod that does not require a tune. Your FPR regulates your fuel pressure regardless of what pump you install. However, installing an aftermarket fuel pump would ensure that with your tune you would not lean out on upper rpm range due to lack of stock pump flow.
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^^^ Plus, it's pretty easy to do in your driveway if you feel up to it.
Hey guys, so update on my car, I installed a full turboback exhaust, boost controller, aos, and intake. I got it protuned as well. I?m pushing 330 torque and 300 hp. Up next are some fuel upgrades, my question is, do I need to upgrade the fuel lines and rails, or can I just upgrade the pump and injectors? Do I also need a fuel pressure sensor?
Remind me again, what is your ultimate power goal? If you are keeping it in the 400whp-and-under ballpark, you shouldn't need a fuel rail upgrade. As for fuel lines, they should be fine well past 500whp. Pump and injector upgrades should be sufficient. I'm not sure why you would need a fuel pressure sensor.
But like I said, figure out what your end goal is and let me know, so I can offer the best advice for that power level (so you don't have to buy mods twice).
But like I said, figure out what your end goal is and let me know, so I can offer the best advice for that power level (so you don't have to buy mods twice).
400whp and under ball park, that?s what I?m aiming for. Nothing too crazy
Cool. You'll be fine with stock fuel rails and lines.
Your STi is 15 years newer than mine, so I'm not sure what would be required. Are you currently experiencing said 'stumble'? I was under the impression that it was mosty confined to GR chassis model years (2008-2009ish).
[MENTION=692]Eagleye[/MENTION] ^^^ ???
Pleochroic
New member
I had Takeda power intake with custom downpipe along with HKS Hi-Power Catback Exhaust on my 15 wrx sti vab (JDM) & ROM-tune was fined until a dumb naive mistakes that blewn my stock turbo, lesson learnt 
Had an great offer deal for Tomei M7760 :lol: along with Mishimoto fmic... My nx on mind would be crank, fuel injector&bigger pump
Had an great offer deal for Tomei M7760 :lol: along with Mishimoto fmic... My nx on mind would be crank, fuel injector&bigger pump what were you pushing before you blew the turbo?I had Takeda power intake with custom downpipe along with HKS Hi-Power Catback Exhaust on my 15 wrx sti vab (JDM) & ROM-tune was fined until a dumb naive mistakes that blewn my stock turbo, lesson learnt
My car is in the shop as we speak it’s a 2018 STI. I’m doing the exact same work as you. I’m doing an air oil separator Cobb intake and a Cobb exhaust from turbo back. I was told that I need to do my injectors. My pro tuner said I can get by with just doing a fuel pump. How is your car running without doing the injectors. I’m also getting a pro tune.
You're really going to want the injectors. If I remember correctly, the factory injectors are going to be nearly maxed out when your tuner is done. Plus, if you go for more power in the future (don't we all?) you will absolutely need larger injectors.
Well my tuner , installed a bugger fuel pump , to help compensate for the injectors . But yes I guess my next step would be is to get the injectors . He was able to tune my car , so far so good . Lots of power thx
