DIY: STi TMIC with Y-pipe on WRX

[WRXreX]

Follow this instruction if your USDM STI TMIC came with a y-pipe.

Problem:
You will notice that Y-pipe to turbo hose is about 1" short!

Solution:
Order 2" 90 degrees ID hose here for $38 shipped. You will have to cut about 1 cm to create a perfect fit.
http://www.stylinmotors.com/90Elbow.html

Problem:
Brackets will not align with the intercooler on passenger's side. It is perfectly normal for USDM TMIC to not correctly align with brackets. Why? because throttle body hose is about 0.5inch short.

Solution:
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

Problem:
WRX splitter and seal won't align correctly!

Solution:
order air splitter and seal kit from rally spec
RST-9085kit Air Splitter & Seal Kit MY02-03 $84
http://www.rallispec.com/

Installed pictures:

[LarsBars]

Thanks!

Followed your instructions and they worked flawlessly.

Stuff from StylinMotors was excellent too.

[nvsn8]

what modification would be needed to install on a 04-05 for the splitter and seal?

I am guessing just a 04-05 sti seal and splitter?

[WRXreX]

what modification would be needed to install on a 04-05 for the splitter and seal?

I am guessing just a 04-05 sti seal and splitter?

I believe so. On my 02 WRX, I had to use JDM splitter and shroud.

[06WhiteWRX]

i have an 06 wrx and i got an sti top mount sitting in my garage. which one should i get so that it will reach the hose to the turbo.like u said.. its 1inch short.
but theres alot off diff sizes to chose from. any specific one i should get?
thanx

[carnitas]

i also have an 06, do you think its necessary to buy a new splitter?

[LarsBars]

Thanks!

Followed your instructions and they worked flawlessly.

Stuff from StylinMotors was excellent too.

Wanted to pass on this info, this thread helped me so figured I would submit something of merit.

sylinmotors added a subie page. They now have inlet hose and a hose kit. I am going to order the inlet hose. let you know how it works.

[06wrx4me]

With 06+ you need only the elbow. The throttle body is 1/2" longer due to throttle by wire instead of throttle cable. It has the same TB as the STI now.

[StarScream]

just to be sure....The elbow = 2" 90 degrees ID hose ? ?

Oops....nevermind. The answer to my own question is YES.

[LarsBars]

Oops....nevermind. The answer to my own question is YES.

U are correct.

Sylin' even took the guessing out of the equation. They have a kit for this too now. USDM STI conversion kit

[06wrx4me]

U are correct.

Sylin' even took the guessing out of the equation. They have a kit for this too now. USDM STI conversion kit

Yeah but with an 06+ you don't need the 2.75 coupler.

[LarsBars]

Yeah but with an 06+ you don't need the 2.75 coupler.

Isn't that what the kit they have comes with? I thought it was.

[06wrx4me]

Isn't that what the kit they have comes with? I thought it was.

The kit comes with 1-2" 90 degelbow and 1-straight piece and clamps.

For 06+ WRX you only need the 1-2" 90deg elbow.

[redrexmeister]

here is a better price for 90deg elbow coupler

http://www.siliconeintakes.com/index...c1dc025e9d1b94

http://www.siliconeintakes.com/index...c1dc025e9d1b94

[LarsBars]

here is a better price for 90deg elbow coupler

http://www.siliconeintakes.com/index...c1dc025e9d1b94

http://www.siliconeintakes.com/index...c1dc025e9d1b94

You get what you pay for. Found out the hard way. My bulged and popped in less than six months.