chip tunning experience: race and moto concept

[spectraG]

Has anyone had experience with either of those two ECU tunning? I think moto concept has two different package: one with chip tunning alone ($800) and an engine tunning package with variable boost settings..
And, anybody tried the lotus race ecu?

[karmavore]

I too would like to know peoples experiences with Variable Boost Controllers, the MOTO 50hp Chip, and the Lotus Race ECU.

Luke.