Anyone know what the upgraded impeller costs and where to order? I've read mixed reviews about 928 Motorsports' Impeller upgrade with others suggesting to go direct to Vortech. Any other upgrades that you can do besides the 9lb (2.75) pulley and impeller?
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2013 Nismo Z34 / FI TT #091 / IG: @lilzilla_z34
Last edited by BOLIO 671; 09-14-2016 at 01:07 AM.
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