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Old 12-27-2020, 09:09 AM   #1
savagesoob
Scooby Newbie
 
Member#: 521085
Join Date: Dec 2020
Location: Florida
Vehicle:
2015 STI

Default 2015 STI bolt on build.. help needed

I bought a 2015 STI with 56K on it. It was on an OTS cobb tune with an intake only. when I bought it.

Not two weeks later I wanted more power.

I added the following and a pro tune.

1050x injectors
Invidia Catless Downpipe
Cobb Flex fuel
Turbo inlet
Cobb Fuel pressure sensor
Cobb air intake
TGV deletes
Cobb 3 port ecbs
Evap delete
IAG Street series AOS
AEM 340 LPH fuel pump
step cooler spark plug


Car runs great but I just bought a new Bloush 20g xtr for a great deal...

So this and EL headers are what I'm thinking. Is a TMIC upgrade worth it? This is a DD and not raced, tracked, autox or anything. I get on freeway ramps fast... few pulls here and there.

What else, that is somewhat budget friendly, can be added to help reliability and performance?

Thanks!
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Old 12-27-2020, 11:43 AM   #2
Foo_Blyat
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Member#: 93750
Join Date: Aug 2005
Chapter/Region: MWSOC
Default

The stock tmic can handle your current setup and DD goals.

I'd focus on suspension next.

Me personally, my very first mod, to my very first sti, which was my very first car right after getting my license, was Cusco Zero2r coilovers. After that, I started on engine mods.
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Old 12-27-2020, 04:34 PM   #3
savagesoob
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Member#: 521085
Join Date: Dec 2020
Location: Florida
Vehicle:
2015 STI

Default

Quote:
Originally Posted by Foo_Blyat View Post
The stock tmic can handle your current setup and DD goals.

I'd focus on suspension next.

Me personally, my very first mod, to my very first sti, which was my very first car right after getting my license, was Cusco Zero2r coilovers. After that, I started on engine mods.
Thanks for the reply. Yeah I have been looking at a some coilovers. I guess thats what newbies like me often overlook. Think about power only instead of the whole package including suspension and braking.
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Old 12-27-2020, 09:04 PM   #4
Scorpius
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Member#: 370806
Join Date: Oct 2013
Location: Northern Indiana
Vehicle:
2019 WRX/STI DGM
23 Nissan Frontier Pro 4x

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Bilstein suspension setup from Racecompengineering.
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Old 12-28-2020, 01:55 PM   #5
savagesoob
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Member#: 521085
Join Date: Dec 2020
Location: Florida
Vehicle:
2015 STI

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will the 1050x injectors be alright with the 20g and e85? I'm hearing mixed opinions.
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Old 12-28-2020, 02:24 PM   #6
jbremser
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Member#: 521265
Join Date: Dec 2020
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I have larger injectors 1050 with an E85 tune and i have no issues.
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Old 12-28-2020, 03:33 PM   #7
Foo_Blyat
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Quote:
Originally Posted by savagesoob View Post
will the 1050x injectors be alright with the 20g and e85? I'm hearing mixed opinions.
In my opinion, which isn't fact, I'd think they should be plenty for the 20g. However, If on the dyno your tuner says he's having some fuel delivery issues, I would replace the skinny bottle necked oem hard fuel lines that go from the pump to the rails with larger flexible hose instead of jumping to larger injectors,

Again, that's just me personally and someone else might not do the same
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Old 12-29-2020, 08:05 AM   #8
savagesoob
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Member#: 521085
Join Date: Dec 2020
Location: Florida
Vehicle:
2015 STI

Default

Quote:
Originally Posted by Foo_Blyat View Post
In my opinion, which isn't fact, I'd think they should be plenty for the 20g. However, If on the dyno your tuner says he's having some fuel delivery issues, I would replace the skinny bottle necked oem hard fuel lines that go from the pump to the rails with larger flexible hose instead of jumping to larger injectors,

Again, that's just me personally and someone else might not do the same
Thanks. I'll bring that up
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Old 12-29-2020, 12:40 PM   #9
Scooby-Doode
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Member#: 28976
Join Date: Nov 2002
Location: ANE Where
Vehicle:
2016 Step 2 Push
Buggy GT

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Don't forget about the brakes. Braided brake lines, better brake fluid, better pads.
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Old 12-29-2020, 03:20 PM   #10
SnoBrrru
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Member#: 501446
Join Date: May 2019
Location: Reno, NV
Vehicle:
'15 WRX
gone plaid

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Quote:
Originally Posted by Scooby-Doode View Post
Don't forget about the brakes. Braided brake lines, better brake fluid, better pads.
This. adding more "go" - don't forget to add more "whoa"
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Old 12-30-2020, 02:44 PM   #11
savagesoob
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Member#: 521085
Join Date: Dec 2020
Location: Florida
Vehicle:
2015 STI

Default

Quote:
Originally Posted by SnoBrrru View Post
This. adding more "go" - don't forget to add more "whoa"
haha yeah for sure!


Will my ID 1050x injectors be enough for the Bloush 20g xtr and run e85? After this power is done and on to suspension and brakes.
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