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Brett's 2015 STI - over 600whp and more to go!

Posted by Ed Susman on

Here is a nicely built 2015 STI. This one has an IAG Stage 4 block, ETS Turbo kit with a Precision 6466 turbo, and a whole slew of supporting mods. We got the car up to about 27psi, but ran out of wastegate. It still cracked 600whp which is really impressive at this boost level. The customer will be going with a stiffer wastegate spring and coming back to shoot for about 700whp!

Here is the chart on 27psi in the meantime:


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