[tikamak]

Man my friend designed did a z4m conversion on a regular z4. If installing ESS VT2-500 is harder than that, then i dont want the kit,.

Anyway, i think the vortech V3 is not suited for the S54 at the boost levels we are operating, it works for big v8s and bigger engines, compare a stock dyno graph next to an ess vt2 and show me where it makes its power, 6500rpm and above

Not all the tuners can tune as well, it takes a realtuner to understand how to adjust cam timing and increase dynamic compression in an s54. If the driving is smooth it doesnt mean its the best tune ever.

Ill be happy to take you on a ride in my car. That was properly tuned with correct variables, you have ample torque everywhere and the power is absolutely brutal above 4K rpm, I might not have that extra 5hp @7500RPM but I can assure you that I'm ready to drag anyone who is tuned with a different company.
Just for the record, I am dragging e46 m3s stock US by 12-14 cars length.