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2017 ZL1 Tuner Advise
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08-16-2018, 09:39 AM
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BMWM.D.
Drives: ZL1/335i
Join Date: Apr 2014
Location: Santa Barbara
Posts: 870
Most reputable tuners use HP Tuners on this platform. It’s what I use.
That said, you seem to be fairly close to Weapon-X, Livernois, and Katech. James Shor (Shor Tuning) is a good option, though probably a long road trip.
BMWM.D.
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