TD04L Turbo applications?

2007 WRX / 2008 WRX turbos are different

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.

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.

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.

sb2665 said:

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.

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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.

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.

sb2665 said:

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