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Firs of all there is more to any form of FI then to mount it and fit a 'computer chip'. Second there is turbo kits to suit VN-VR V6, VS-VZ V6, VN-VS V8 and the full LS1 range.i voted super charger cause u can buy it and install it urself easy peasy
were the turbos there are no off the shelf kits plus i would want 2 turbos
if i had to have turbos and then there is all the extra work involved were u can just chuck a supercharger on and change computer chip and we he instant power