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I agree with you. I had Cobb Stage I and then Cobb Stage II. The PPK was smoother in every transition from gear to gear. I now have GIAC Stage II and it is much smoother than Cobb in every aspect but also very close in overall boost. Stage II is up to 16 psi and I believe Cobb Stage II was at 18 psi. IMO the PPK is a waste of money ($800) if you are in search of more boost v stock.
Thanks for the review.
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