🔧 Perrin Performance Turbo Sump Restrictor - PSP-ENG-628 Review

I've had some oil burning issues on my stage 2 and so far have been so good with this little mod that only took about 15 minutes to install and got rid of stubborn smoke at idle!

Significantly less smoke from the exhaust! Make sure you tighten the clamps enough when installing, otherwise they might leak a little like I did before tightening them.

I used this on a 2019 Wrx and it has essentially reduced oil burn in the exhaust, but because it restricts oil from the sump it looks like the hose is sweating from condensation and oil . Plus T Connect does nothing. Use only if excessive oil is being burned in the exhaust.

Got a 2017 Wrx. The easiest way to install is to remove the left hand radiator fan, use a sharp knife and cut about an inch below the sensor and then about a half inch or any width of the throttle. I just used the two large brackets that were provided. I did not use an elevator or remove the hose. Pretty simple build.