Warranty shwarranty blah blah blah I got that covered. Is the HP and speed increase worse the $$$ (600 USD)
Guy at the tuning shop told me this 540 isn’t worth the money messing with the exhaust system for noise purposes.
But I’m also not seeing much online about anyone tuning the G30 post facelift.
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I did the stage 2. Downpipe and K/N Performance filter, got 466 on the wheel at the dyno. Definitely worth doing it! It’s a different car, more pleasant to drive. Wanna go deeper. Buy the HPFF and go stage 3
Is the down pipe and k/n performance filter what makes it stage 2? Or did you need to flash tune as well