Just did the install 2 nights ago. no more surge. great item. one problem. I was only able to gain 20psi of the 26 i had before. the waste gate was held open slightly due to the casting difference of the stock manifold vs. ATS. trimmed the op rod on the waste gate to close it back up tight and made 27psi peak. though one warning it does whistle, a lot.
xwheel worked for me. I had a lot of surge when I put in my chip. The xwheel completely took care of it. Completely. Fraction of the cost of a ats housing. I figure Ill get a ported housing when this turbo poops and I get a H2E or 38R.
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