agreed with above, I was seeing 9+ a little more on the 8 PSI pulley I did the impeller upgrade only and was just over 12 PSI BOOM
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. 3 days
Stillen Kit is good for only Stock pulley and PSI 8-9 if you go over that you asking for trouble.
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14 Q50 AWD, ARK, ECUTEK (SEB), Takda,