Dave Plowman (News) wrote:
In article ,
Chris Bacon wrote:
It seems to me that in many modern production cars the "performance
tuning" has already been done...

Indeed. Unless it's a turbo where you can simply wind up the boost, it's
extremely expensive to get a meaningful power increase on most modern
engines.

Oh, no rechipping will net you lots..at the expense of dire fuel economy
usually. Especially if there is a turbo you can screw the waste gate
down on