STi TMIC on WRX with samco I/C hose

[WRXreX]

Spent an hour installing STI TMIC on WRX today. I will post a picture tomorrow.

If you want to install STI TMIC with missing y-pipe (and use your WRX Samco hose), you will encounter two problems.

1. Brackets will not align (on driver's side)
2. Samco IC hose is about 1" short.

[WRXreX]

Solutions:

1. You will have to cut the Samco IC hose to extend the Samco IC hose. Use 1 7/8" OD coupler from Advance auto part to extend the length. I P&P'd the pipe to smooth out the edges.



2. Longer Throttle body hose
Intercooler to TB hose is about 67mm ID (too short @ 2" in length). You can order a 2.75" ID turbo hose (3" in length) from here if you decide to correctly mount both brackets. http://www.stylinmotors.com/turbohose.html



ps: picture shown above has color matching turbo to IC hose. I bought it for $38 shipped from sylinmotors.com

[WRXreX]

Update: YOU must get a JDM V7 STi splitter and shrould. USDM STi splitter and shroud WILL NOT WORK.

[WRXreX]

Update: USDM STi air splitter and shroud kit WILL NOT WORK on 02-03 WRX with STi hood scoop. You must get a JDM V7 air splitter kit.

[luckie8]

How did you get the driver side bolt to line up with the bracket?
I had to bend the pass side bracket to line up with the IC but the driver side looks like it has to be shortened in order to line up.

[vincent77]

mine is still not lined up right but warm weather is on the way and then i can mess with it then

[WRXreX]

Attached below are some more pics...

[WRXreX]

[blarg]

FYI -

passanger's side bracket mod:

this is for a different intercooler, but same idea...



...and you can buy STi cast aluminum inlets with silicone hose for about $70 on ebay...just be careful when you cut the hose is VERY VERY easy to end up cutting off too much...I ruined 4 before I got it right.

[WRXreX]

Which one do you think is more restrictive?

[blarg]

I'm not sure there would be a noticable difference. They're both way better than stock. I have the metal Y myself.

[WRXreX]

If you are looking into replacing your OEM TMIC with USDM STi TMIC, make sure to replace air splitter kit with JDM one from rallispec ($84).

I've been driving my car with regular WRX splitter for several months now and noticed TMIC was getting noticeably hot... I placed an order for a correct air splitter kit from rallispec yesterday finally.

[WRXreX]

Finally had a chance to install JDM STi air splitter today.

WRX splitter:


Side by side comparison:


Splitter comparison:


Installed:




Directs air through two channels (much more effective in cooling lower section of TMIC).

[vincent77]

hope you havent sent it back the rubber fits you just have it backwards, just installed mine last week and made the same mistake at first just turn it around, seems unatural at first but thats the way it fits

[vincent77]

smooth side faces in