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Between AA and Big Tom i would say they would perform the same, however that being said its not until upgraded turbos i would go this big FMIC. Too much pressure loss, and overwork the turbos, probably higher WGDC too.
Get the AMS, Helix or the ETS 5" or 6", they are all identical
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COBB S2+ - Mr.5 CAI, Catless DP, Catless MP, AMS FMIC. |