I have a VY SS with a LS1 Gen 111. I have added SS Inductions Cold Air intake, SS Inductions Big Bore Air intake, SS Inductions Mass Air Flow Meter, 2 1/2 inch exhaust, Genie 4 into 1 headers, unichip, replaced the standard turtle shell engine cover with dual engine covers and had a 3.9:1 diff installed.







The problem is..on the dyno (with atmospheric adjustthe car only pulls 209.8kw rather than the usual 220kw odd which one would expect from these mods.







Anyone experience the same prbolems? Any fixes?







I was thinking about adding an electric water pump for another 10kw or so? what do you think?