Just wanted to share, I never got the chance to post this and figured you folks would benefit from the info.
All in all, very satisfied with the kit. Best bang for the buck for the S62 engine IMHO.
Runs did at same shop (EQ Tuning) on same Dynocom unit. According to the shop, Dynocoms reads about 15% lower than a Dynojet.
Correction Factor (bhp): 15% for dynojet disparity, another 15% for drivetrain loss.
124k miles, stock except CAI and muffler delete.
Averaging the 3 runs puts it at 301whp. Corrected with the above method would make it effectively 398.07bhp
140k miles, ESS VT1-560, 91 octane, 7k rev limit
Averaging the 3 runs puts it at 410.46 whp. After correction - 542.84bhp
(averages of 3 runs)
before -301whp / 304.33wtq
after - 410.46 whp / 366 wtq
gain - 109.46 whp / 61.67 wtq
ESS advertises kit at 552bhp / 460 btq
Stock S62 produces - 394 bhp / 369 btq