Don't know what part this is...
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Don't know what part this is...
Hey guys, sorry for the noob post and I would search but I have no idea where to even start. I pulled off my CAI today and this was under it. It says Perrin on it as well as boost with 2 arrows.


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Ah, that's what me and my buddy thought but I wasn't 100% sure lol. Just came over from the Subaru world and we really don't use those. Thanks for the fast reply.
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Yeah, I know some things about turbo cars. I would never up the boost on my STI without proper EM so not about to do it on my new Evo.
AEM.
AEM.
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There is a lot of Perrin stuff for Subarus but MBC's aren't really ever used as far as I know. I was boosting 20psi with my 05 STI and the boost was upped when the car was tuned, no MBC involved.







