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Old 02-15-2021, 11:36 AM   #1
FluffehPanda
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Default 2010 STI Reliability mods?

Hey going to get a 2010 STI Hatch soon that has a stage 2 tune on it through a Cobb Accessport. I've never owned a non-NA Subaru before and have been doing research on reliability. Here's my parts list so far:

Torque Solutions Cylinder 4 Coolant Mod
Koyorad front radiator
Cobb/IAG AOS
TGV Delete
Get a Pro-Tune done

Any suggestions or addons? Trying to have it as my daily but still be able to send it without worrying about it blowing up lol
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Old 02-15-2021, 12:13 PM   #2
Zmanwrx23
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IMO the best bang for buck "safety" mod you can do for you car is to get rid of the stock oil pickup. Be shame for it crack and starve the bottom end, then suddenly it's time for a new motor. I got the Killer-B pickup and baffle, you could spring for the oil pan as well however the price deterred me from doing that. New pickup/baffle work with the stock pan anyways. Inspect your oil pan well and make sure it's not dented/creased anywhere, give it a clean and seal it back up. Other things that tie into reliability would be monitoring stuff like temps/fuel & oil pressure/etc. These can give you an idea that something is wrong before it gets worse.

Last edited by Zmanwrx23; 02-15-2021 at 12:56 PM.
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Old 02-15-2021, 12:39 PM   #3
Stretch18
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Location: America's Penis
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Quote:
Originally Posted by FluffehPanda View Post
Torque Solutions Cylinder 4 Coolant Mod
FYI, i've seen some folks saying they had issues with weak heat inside the car using this version of the cylinder 4 mod. Better to get the Dom version to avoid that, since this is your daily...

This is also a good primer for an 11 year old car:
https://forums.nasioc.com/forums/sho....php?t=2740715
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Old 02-15-2021, 01:16 PM   #4
car_freak85
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Quote:
Originally Posted by Stretch18 View Post
FYI, i've seen some folks saying they had issues with weak heat inside the car using this version of the cylinder 4 mod. Better to get the Dom version to avoid that, since this is your daily...
Torque Solutions are ripoff artists, best to avoid their products going forward OP.

As for the heat problem mentioned by Stretch, you can include an inline restrictor to reduce the flow and increase the HVAC heat. Probably not a problem on the west coast, south west, but in Canada, AK and the upper midwest it will likely be more of an issue.
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Old 02-15-2021, 01:44 PM   #5
slow.wagon
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Default RE:2010 STI Reliability mods?

+ Delete Secondary Air Pump
+ Delete TGV
+ IAG Competition AOS
+ Fluidampr Harmonic Balancer
+ Routine Oil Changes
+ Get the car tuned
+ Larger TMIC
+ Fuel Rails & FPR

If you can afford it:

+ Forged Pistons & Rods
+ EL Headers
+ Conservative exhaust system

If you can get away with it:

+ Delete the CAT

Leave everything else alone, including the turbo.
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Old 02-16-2021, 02:18 AM   #6
FluffehPanda
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Quote:
Originally Posted by slow.wagon View Post
+ Delete Secondary Air Pump
+ Delete TGV
+ IAG Competition AOS
+ Fluidampr Harmonic Balancer
+ Routine Oil Changes
+ Get the car tuned
+ Larger TMIC
+ Fuel Rails & FPR

If you can afford it:

+ Forged Pistons & Rods
+ EL Headers
+ Conservative exhaust system

If you can get away with it:

+ Delete the CAT

Leave everything else alone, including the turbo.
For the intercooler, would it be better to upgrade the top or bottom first?
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Old 02-16-2021, 09:27 AM   #7
Unabomber
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on car parts so PM
me b4 j00 buy

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Quote:
Originally Posted by FluffehPanda View Post
For the intercooler, would it be better to upgrade the top or bottom first?
Neither. An intercooler is not a reliability modification.
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Old 02-16-2021, 04:52 PM   #8
car_freak85
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EJ205

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Quote:
Originally Posted by slow.wagon View Post
+ Delete Secondary Air Pump
+ Delete TGV
+ IAG Competition AOS
+ Fluidampr Harmonic Balancer
+ Routine Oil Changes
+ Get the car tuned
+ Larger TMIC
+ Fuel Rails & FPR
+ Forged Pistons & Rods
+ EL Headers
+ Conservative exhaust system
+ Delete the CAT
Quote:
Originally Posted by Unabomber View Post
Neither. An intercooler is not a reliability modification.
I'd go so far as to say that NOTHING on this list is a reliability modification, save for the oil changes and removing the catted uppipe (if that's what "Delete the CAT" was supposed to mean)...
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Old 02-16-2021, 05:17 PM   #9
Jedi03
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Location: New Mexico
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add 1 piece driveshaft, better pads, learn about the car and how to drive it
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Old 02-27-2021, 03:39 PM   #10
Metalhead_tx
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Default reliability mods

The best thing for reliability would be to leave the car stock. Any aftermarket performance pieces will most likely cause premature wear on the internal components.
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Old 02-27-2021, 04:10 PM   #11
Jay11STI
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Chapter/Region: Tri-State
Location: North Jersey
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2011 STI

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I dont think alot of stuff that was mentioned here is really needed. I think if you are going to buy a used sti then you should really be doing a compression and leakdown test prior to purchase. Even more so before modding the car and throwing power add it. Be smart about this.

After you verify engine health, the first thing i would do would be to take care of any needed maintenance. Im sure the car needs something, they always do. After that, since this a GR chassis i will highly recommend upgrading front and rear sway bars + alignment. That will be a huge night and day differance in the way the car rides and handles. If i could go back, that would be the very first mod for me.

After that if you are set on adding power to the car you can go for a basic stage 2, intake exhaust downpipe and tune. Fuel pump would also be recommended. If you really want to add some more power while also adding reliability, add an ELH. Protune is highly recommend reguardless of what stage of modding you go for. I wouldnt recommend going with the accessport maps for long. They are generic off the shelf maps and every car is different.
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