Even though mines a diesel, i'm fairly sure the N75 does the same job.
When i was having problems with boost a while back, it was because the N75 wasnt working due to a disconnected pipe. Essentially it became a normally aspirated engine and it was pants. Dont do it IMO.
You may not think a non re-mapped diesel isnt that quick, but 0-60 in 45 seconds?
i think not.