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Review on πŸ”§ Perrin Performance Turbo Sump Restrictor - PSP-ENG-628 by Samuel Nguyen

Revainrating 5 out of 5

Worked great on my Stage2 2015 WRX

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.

Pros
  • Automotive
Cons
  • Some bugs