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11,238 Posts
Discussion Starter #1
Just got this back today.
+1mm Ferrea valves intake and exhaust
Port and polish
PAW performance single valve springs
PAW titanium retainers

Don't have final flow numbers yet. While we didn't get the expected 40% from the exhaust (found out this head flowed better stock than the other one they did) is is still 30%+. Intake improved about 25% at low lift ranges so throttle response should improve and spool time should be better as well. Big benefit with the bigger turbo. Can't wait to get it on...


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