2025 Wrx Sti Stock Turbo Heat Shield Installation Instructions. The perrin heat shield is perfect way to keep temps low in your subaru wrx sti's engine bay. Using this heat shield will help guide heat away from your intercooler helping your engine make more power safely by lowering the overall intake temperature.

The stock heat shield has a tight fit to the stock dp. Using this heat shield will help guide heat away from your intercooler helping your engine make more power safely by lowering the overall intake temperature.