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Discussion Starter · #1 ·
Hello all,

For those that have installed the turbo inlet for STI and WRX. do you notice any real difference in performance/sound. Also for those that used the 3' inlet, did you have to make any changes to turbo/intake?

Thanks
 

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I noticed the giant sucking sound from the hole in the factory one disappeared.

Mine worked fine with the stock turbo and intake. I can’t imagine it not being capable of attaching to factory or aftermarket parts comfortable.
 

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do you notice a big difference in the 3' inlet from a aftermarket turbo or not so much

Depends on the size of the turbo, but generally no. Up to a 30r or equivalently sized turbo the difference won't be very noticeable. The bigger you go the greater the difference will become. Plus most larger turbos will come with anti surge ports these days, which will require a larger inlet to accommodate. My GTX3576r only has a 3" opening at the compressor inlet, but with the anti surge ports the outer diameter requires a 4" coupler to the intake.
 
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