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Discussion Starter · #1 ·
I thought I had a 280hp 2008 Imprezza WRX and Forrester Turbo and Wastegate assembly but apparently it is an 2007 Imprezza WRX and Forrester assembly. I was informed that the connection to the intercooler on an 08 is a two bolt flange as opposed to the 07 three bolt. Is the TD04L Turbo the same on both years? Thanks!
 

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2007 WRX / 2008 WRX turbos are different
 

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02-07 WRX and 04-08 FXT was a TD04L-13T.. it has no bolts connecting to the intercooler, just a coupler.

08 WRX and 09-13 FXT was a TD04L-19T.. which has a two bolt flange connecting to the intercooler.




The 2008 WRX and 2008 Forester XT use different turbos. I would guess that's where the confusion lies.
 

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Discussion Starter · #4 ·
You know someone said that the connection to the intercooler is different (2 bolt opposed to 3) but now that I think about it they are talking about the connection to the exhaust downpipe. The connection to the intercooler is pretty much always going to be a coupler "hose clamp". Of course that compressed (heated) air is piped to the intercooler and then to the throttle body.
 

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sb2665 said:
You know someone said that the connection to the intercooler is different (2 bolt opposed to 3) but now that I think about it they are talking about the connection to the exhaust downpipe. The connection to the intercooler is pretty much always going to be a coupler "hose clamp". Of course that compressed (heated) air is piped to the intercooler and then to the throttle body.
Incorrect.

2007 WRX style:


2008 WRX style:


2008 connects directly to the intercooler, where the 2007 connects to a silicone pipe and a metal Y-Pipe which connects to the intercooler.
 

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Discussion Starter · #6 · (Edited)
Thanks for the info. My only turbo experience was with my 89 Probe GT turbo. I know the ideal is hard piping from the turbo output all the way to the throttle body to minimize boost spikes. This assembly was given to me by my brother in law a decade ago when he switched his out at 600 miles to a STI turbo and remapped his Forrester. He thought I might upgrade my Probe but I just chipped it and doubled the stock boost. In researching this I'm finding wildly differing Subaru applications for this assembly. Any way to definitively nail down the applications for this? I'm sure an enthusiast would like a used but mechanically like new assembly.
 

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This assembly was given to me by my brother in law a decade ago when he switched his out at 600 miles to a STI turbo and remapped his Forrester. In researching this I'm finding wildly differing Subaru applications for this assembly. Any way to definitively nail down the applications for this? I'm sure an enthusiast would like a used but mechanically like new assembly.

You shouldn't really be finding wildly different applications.. there are only a couple Subaru models that are turbocharged, and only two or three different setups used between them throughout the years. It's pretty simple really. All you need to know is which one you have. There's only one setup that comes on a specific make/model.. since you already know it came from a Forester, the only other thing you need to know is what year model the car was, then it will be clear what different makes and year models that setup will work with without needing modification.
 

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Discussion Starter · #8 ·
Thanks again! It was a 2007 Forrester XT. He says it will cover 02-07 WRX's and Forrester's. He also said the 08 Forrester used that turbo but not the WRX. Someone will get an inexpensive score with it. It's mechanically perfect.
 

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Thanks again! It was a 2007 Forrester XT. He says it will cover 02-07 WRX's and Forrester's. He also said the 08 Forrester used that turbo but not the WRX. Someone will get an inexpensive score with it. It's mechanically perfect.

Yep.. it will be a direct replacement for 02-07 WRX and 04-08 FXT. :thumbup:
 
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