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Of course we had to put a PERRIN
rotated turbo kit on this car. The only question was which turbo? On the internet forum boards, everything is all about the GT3582R turbo
. This is a great turbo that makes big power but itís not my personal choice. The last two cars I had were built to be very responsive. For this build the GT3582R
is too laggy and does not make for a good autocross/street car.
The turbo for me is the GT3071R
, a bit smaller, bit more responsive, and still able to make 400WHP. We always tell people to buy the smallest turbo that supports your HP goals. We want to showcase the power that can be made on pump fuel and then on water injection.
To create a turbo kit for the 2008 WRX I had to design a new down pipe which was longer and must clear the fire wall. I designed these changes to also work with the new Legacy GT so be on the lookout for that turbo kit soon. The single most important part of this turbo kit was adding a CARB approved catalytic converter. Many consumers think that the only way to make power is by getting rid of cats. This is just not the case and with our last couple of PERRIN project cars, we had cats installed, and they both still made great power.
As the rotated turbo kit was being built right on the 2008 engine, we quickly discovered that the intake system had to be completely redesigned. So a few 3" bends, welding, and more of that red wrinkle finish! Just like our new turbo kits for the older cars, the air filter is now located in the fender well area to get the freshest coolest air possible.