[Jules]

Mmm yes you must have less hair than me now Matt!
The performance and economy varied widely even when they were new.

Some were lively, and others were sluggish.
However recently we cured a very sluggish ZT 131 with 50K miles on it.

After much deliberation I advised the owner to go for a punt & to re purchase the XPart 131 remap CD for his VIN number.
We programmed it in and guess what ...............CURED ...like new again.


So it seems either it wasn't mapped properly from new

Or

The mapping had somehow in it's life got corrupted.
I suspect theres a few similar owners Cars driving around with the same Mapping problems