Blindly bought a modded 2018 STI

[Yoitscode]

If I post pics on here are you guys able to tell me what stage my car is ? I just bought a 2018 sti and wanna make sure my investment was worth it. Don’t know a whole bunch about these cars but it has afermarket Intake, exhaust, Cobb tuning stage 3 I believe..? It came with accessport and there’s so many stage 3 options how do I know which map is best for my car ?? So many questions so I’ll post some pics here soon. Car has 16k miles. Also took around block for first time and got an engine light first was “system too rich” now that’s randomly gone and got engine light for sensors open codes or something... losing sleep over this ! Lol

 

[Yoitscode]

BAF904-ED-F3-A6-4187-811-D-C5-EF931-AC10-E hosted at ImgBB

Image BAF904-ED-F3-A6-4187-811-D-C5-EF931-AC10-E hosted in ImgBB

ibb.co

EB2-B2122-D0-A7-494-E-B368-868186-B7-A383 hosted at ImgBB

Image EB2-B2122-D0-A7-494-E-B368-868186-B7-A383 hosted in ImgBB

ibb.co

FDBC1928-F618-4562-BF6-D-DE9-DBBF26-C4-E hosted at ImgBB

Image FDBC1928-F618-4562-BF6-D-DE9-DBBF26-C4-E hosted in ImgBB

ibb.co

C00-FC731-96-F3-4-AD6-AB3-F-00-C582461-BCE hosted at ImgBB

Image C00-FC731-96-F3-4-AD6-AB3-F-00-C582461-BCE hosted in ImgBB

ibb.co

371-B7-CC7-61-C4-49-ED-BF05-99-D1142-B9486 hosted at ImgBB

Image 371-B7-CC7-61-C4-49-ED-BF05-99-D1142-B9486 hosted in ImgBB

ibb.co

 

[Alin]

@Yoitscode , welcome to IGOTASTI!!! You're going to absolutely love it here!!

Post some pictures of the engine bay and interior. We can't help if we don't have a list of actual modifications or visuals.

In reality, you shouldn't have purchased it blindly. Also, I wouldn't recommend driving it without knowing if it's properly tuned, and it appears that it is not at the moment.

 

[Yoitscode]

FA48208-E-C848-4388-9-C94-D1194-E171837 hosted at ImgBB

Image FA48208-E-C848-4388-9-C94-D1194-E171837 hosted in ImgBB

ibb.co

 

[Yoitscode]

9-E3-AB4-B5-9508-443-D-9-FBD-E9-BC78-FBAB9-A hosted at ImgBB

Image 9-E3-AB4-B5-9508-443-D-9-FBD-E9-BC78-FBAB9-A hosted in ImgBB

ibb.co

916502-D0-32-BD-4705-92-C2-1-A4467187-AA5 hosted at ImgBB

Image 916502-D0-32-BD-4705-92-C2-1-A4467187-AA5 hosted in ImgBB

ibb.co

2-D4-F0021-8633-498-C-A444-226723-ABD305 hosted at ImgBB

Image 2-D4-F0021-8633-498-C-A444-226723-ABD305 hosted in ImgBB

ibb.co

31-A18794-46-AA-4-FD5-97-BC-F4703-F59-B14-C hosted at ImgBB

Image 31-A18794-46-AA-4-FD5-97-BC-F4703-F59-B14-C hosted in ImgBB

ibb.co

FC523592-BA02-4-C39-A449-73-CEBBFCAD15 hosted at ImgBB

Image FC523592-BA02-4-C39-A449-73-CEBBFCAD15 hosted in ImgBB

ibb.co

4-A58-CBD7-135-D-4365-97-F5-BBE827005-B44 hosted at ImgBB

Image 4-A58-CBD7-135-D-4365-97-F5-BBE827005-B44 hosted in ImgBB

ibb.co

18246-DA6-66-F5-41-B6-9-FB8-5-DA35-C0-A6064 hosted at ImgBB

Image 18246-DA6-66-F5-41-B6-9-FB8-5-DA35-C0-A6064 hosted in ImgBB

ibb.co

40598807-9-F8-D-4-BA6-A03-D-D3568288118-B hosted at ImgBB

Image 40598807-9-F8-D-4-BA6-A03-D-D3568288118-B hosted in ImgBB

ibb.co

9-DAA151-D-76-A8-4463-8-BF5-AAE01530802-A hosted at ImgBB

Image 9-DAA151-D-76-A8-4463-8-BF5-AAE01530802-A hosted in ImgBB

ibb.co

22515-D61-D464-4-E47-A365-4-E161-CD46495 hosted at ImgBB

Image 22515-D61-D464-4-E47-A365-4-E161-CD46495 hosted in ImgBB

ibb.co

 

[Yoitscode]

Ignore the first pic lol

 

[Yoitscode]

Peep at the fifth pic down on that last post doest it look like it’s not on all the way with the clamp?

 

[Yoitscode]

Sorry for blowing up but another question why don’t I have a top mount intercooler ?

 

[Batmobile_Engage]

Sorry for blowing up but another question why don’t I have a top mount intercooler ?

You have a Front Mount Intercooler. Not sure, but judging from the charge pipes, it might be a Perrin FMIC.

As for tuning, I would highly recommend finding a protuner that has an all-wheel drive dyno and works with Cobb Accessport.
Go to: https://www.cobbtuning.com/dealers
...and "Narrow By Dealer Type" to PROTUNER and see who is available in your area.

They can run a baseline, figure out the specifics to your tune and make any changes that might be needed. You definitely do not want to blow up your engine by assuming that the previous owner had everything done properly.

 

[Batmobile_Engage]

Also, while @Alin is right that driving it with a tuning problem is risky, it might be the only reasonable way to get it to a protuner. So if you must drive it, make sure you are very lite on the gas pedal, so that the turbocharger is not producing much boost. Producing a lot of boost with a poorly tuned engine is generally where you start blowing things up.

 

[Grinder34]

Would love to hear a bit more of the backstory. Was this through a middle man, or can you reach out to the original owner? Does he have a mod list, receipts, maintenance history, tuner name? Any/all of that would be SUPER helpful.

To answer your specific questions about the stage 3 tunes on there, they're all slightly different. So the ACN91 is for places with "bad" gas that only goes to 91 octane (A - alaska, C - California, N- Nevada, 91 - 91 Octane). Then theres a wastegate setting HWG vs LWG, A Valet mode (probably limits RPM, boost, etc...)

 

[Spaceman]

Can someone please help me with my post I need answers quick

If I post pics on here are you guys able to tell me what stage my car is ? I just bought a 2018 sti and wanna make sure my investment was worth it. Don’t know a whole bunch about these cars but it has afermarket Intake, exhaust, Cobb tuning stage 3 I believe..? It came with accessport and there’s so many stage 3 options how do I know which map is best for my car ?? So many questions so I’ll post some pics here soon. Car has 16k miles. Also took around block for first time and got an engine light first was “system too rich” now that’s randomly gone and got engine light for sensors open codes or something... losing sleep over this !