Depends if you want more top end, or bottom end torque.
I personally would go with the gze, of course its got more power down low, and even up top it goes like the clappers, but itcomes at a price. Over heating issues to start, harder to fit and maintain.
I have a ke20 with gze, its great fun. Cost me a fortune to get it to where it is today and its still not on the road. My mate has a ae86 with red top 100kw small port. Goes great around corners being a ae86 and all but in terms of power, i think thats got enough to easily drift.
Or just do both. Get a 100kw or 86kw 4age and then "z" it if you think you dont have enough power.
Bretto
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