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Best TMIC

  • Process west verticooler

  • Grimmspeed TMIC

  • Mishimoto TMIC

  • ICK-042

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2010 Subaru WRX Limited Hatchback 5MT
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833 Posts
Although not as popular as the ones you listed I have a new Spearco kit I'm selling. I'll message you details.

The verticooler is an interesting concept. Divided opinions on it, although those who use it seem to like it. If you're planning to upgrade your turbo you can run into fitment issues. A guy on NASIOC recently struggled with the same.

Lastly avoid mIsHiMoTo at all costs. Theirs was shown to hurt performance. There's a whole thread on it on NASIOC.
 

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2021 WRX
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809 Posts
In all our TMIC testing, the Spearco beats all but one that is not available yet ;)

Although, if you're looking on a budget, the OEM VA STi TMIC is very good. We've run them to ~500whp without issue. It still beat all the other TMICs, except Spearco.

View attachment 334469
How does the VA STi tmic compare to VB wrx?

Also, any guesses as to why subaru went to side end tanks on FA20 and went back to top/bottom end tanks like EJ series on FA24?
 

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17 Posts
How does the VA STi tmic compare to VB wrx?
No way of knowing, they can't be tested and compared on the same car/engine.

Also, any guesses as to why subaru went to side end tanks on FA20 and went back to top/bottom end tanks like EJ series on FA24?
No idea. They both have pros and cons.
 
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