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A tuner wants to install a single large throttle body on my RB26 and remove the mafs for ease of tuning using spitronics engine management. I currently have 6 ITBs on the RB26. He is upgrading the turbos to steel wheels and promises me 350-400kw at flywheel after his complete, will my response be compromised by going with single throttle body? Is this modification recommended?

I personally don't like driving GTRs with a single big throttle body, I find it harder to drive smoothly, I might be a shit driver though LOL.
I love the 6 throttles and try to keep them in every situation that I can.

  • 2 weeks later...

I would be doing the same thing as your tuner is. Using six butterflies can be harder to tune with compared to just one. Honestly I've built motors both ways and don't really mind either. When it all comes down to it he's just trying to simplify a complex system.

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