From one old dude to another, I would give Sebastian at SpecialtyZ a call or PM. He is one of the most knowledgeable tuners you will find. I got my car tuned by him just like binary. The gains are significantly noticeable and the hesitation you experiencing is all but gone. Also, I believe you get 3 tunes for your $600.
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Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:|Fast Intentions 3" TT-TDX|SpecialtyZ/Fast Intentions 72 Row Oil Cooler|SZ 6 Puck Clutch & Flywheel|3GsCustoms|Z1|Wavetrac|Hotchkis|Whiteline |Blitz|Fortune Auto 500|Fujimura|SPL|H&R|TK|TWM|RPM Rollbar|Sparco|Next Level Performance|TrackSpec|AeroFlow Dynamics|Pioneer|
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