as above, by itself on an STI i doubt you'd notice the difference. the stock WRX one is pretty shitty though

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MY93 Impreza GX 1.8L, 0hp, 0nm

i had a stock y-pipe on a gc8, upgraded to silicone and noticed that it flowed a little better. also on the wrx the y-pipe sucks so it was a good excuse to upgrade.

have you got a silicone inlet? that from what i have heard would be good to upgrade

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98 gf8 Rip

Hey guys, I'm looking to upgrade my my00 stock TMIC, I'm tossing up between the Process West TMIC and the STI TMIC. Is there any performance difference known? Actual proof, not just saying it because you have one or the other. And is the price of the PW tmic worth it over buying a second hand STI tmic but then having to adjust some things in order to install.

cheers

Its advisable to 'adjust some things', regardless of what cooler you decide on.

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[SIGPIC][/SIGPIC]

Full PW kit, with the splitter (crucial) + Hobbs pressure switch to suit waterspray system running from your windscreen wiper bottle is the ultimate, or same same with STI TMIC to save yourself some coin with a little more work.

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[SIGPIC][/SIGPIC]
Should have bought an STI

All I have read from this thread is that the sti is cheaper but requires more modifying in order to allow the STI tmic to fit. Elaborate on what you see as advisable. What needs to be done if installing PW tmic compared to an STI tmic?

That would be helpful

brackets and clutch or brake master need cutting down or if done correctly needs relocating. heaps of gc8's have sti tmic and afaik later model gc8 is easier to install

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98 gf8 Rip

Yea but the process west tmic doesn't need any relocating or cutting down etc. does it?

From the times this has come up I think the only answer that has been given is that PW hasn't released any comparative figures or no test results have been supplied/found.

This is probably why the most common response to the PW/STi intercooler debate is jump on the STi option because its cheaper and similar dimensions.

Advisable was used in the sense of regardless of what option you take you're going to need a tune/make adjustments to your existing setup to get it to fit right.

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[SIGPIC][/SIGPIC]

Why do you want to upgrade it? Are you maxing it out? Just do as Rich has partially said & fit some spray nozzles off your windscreen washer bottle, to a hobbs switch, off one of the vacuum / boost hoses and have it spray on your inter cooler. No need for a different tune, this will just keep your intake temps lower on boost.

There is some kind of DIY somewhere to do it.

If you need it for a performance application get the STI one, as it will work out cheaper & just as well as the PW (I believe). Its not very often you see second hand Process West ones for sale and @ $1000 new, it not really worth it IMO. I still have to do a test on the GD STI Vs PW TMIC, which I will do soon once work calms down and Mao has some free time. This will hopefully show which one is the king of the TMIC

If its for the bling, bling factor, spend the money on the PW one, as they are very, very pretty

But, have a look, HERE & HERE

BOV is easy enough to do. Hope this helps

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Cheers,

Simon.