Best heads for twinscroll
06 January 2014, 10:47 PM
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Best heads for twinscroll
Im thinking of upgrading from the vf36 turbo on my legacy, to one a TD05-20G or similar and just wondering if the spec C heads or any other variants would be a better option than the stock twinscroll legacy ones? Im not even sure which heads are on the legacy, i doubt they are the same as the spec C's. What are the best known heads for the impreza setup and ill check against mine and see how they compare 
Also at what kind of power levels do the heads become a restriction and need upgrading etc? Currently making 330bhp on current setup.
Also at what kind of power levels do the heads become a restriction and need upgrading etc? Currently making 330bhp on current setup.
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