Moving to the second upgrade for my HHR SS. The GM Stage 1 Sensors from ZZP. These allow you to up the boost via tuning and also the won’t fail as easily. The failure rate on these is much lower than the stockers, especially when modifying.
Install was easy on top, the bottom….not so much. Let me know if you have any questions, but I hope my tips help you out. Thanks for watching!
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And what is that for?..
So did you ever get to use the green O rings that came with the sensors?