Ztuner - Harry - Bradenton - doesn't necessarily go for max power, tunes a little conservative (he told me this in a conversation)
ZFever - Martin - Tampa - have heard it go both ways
Proven Power - Martin - only heard good things
From what I've heard about ZFever, it seems like an issue with how much time is dedicated to the tune and if Martin is the only one to touch the car or not. For example fi they are super busy with projects, they slack off. (from what i've heard). I had them install my TPs and CBE due to stuck bolts (that I couldn't get) and had a good experience.
I am also deciding who to go to for my tune.
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2014 Cayman S - Daily and Track - PDK | PSE | SC | PCM | H&R | HRE
2009 Ducati 848 - Weekend and Track - HMF | Ohlins | Microtec | Woodcraft | ASV
2010 370z Sport - SOLD - KWv3 | SPC | Stance Wheels | Z1 | Stillen | FI | Takeda | Uprev
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