Originally Posted by powers1

The Dinan Module,I believe was on a 4.4i and if you read the comments on that thread,most of the other members found it hard to believe that the guy was getting +24 mpg!!!The theory here is that if your power/torque is increased at low rpms you wont need to rev it so hard to get the same power as before,so you can "featherfoot it"!!But in practise,if you put more power in your car its because you want to use it,so if you drive your car in the same manners as before the power hyke ,you are obviously going to consume more! On our low revving 3.0 Turbo Diesels,accept an increase of +/1ltr/100kms for a reasonable power gain with a tuning Module.
Btw dont think Dinan do a Module for the Diesel(see my response to you in another thread).Those 24 mpg in that 4.4i are Us gallons which means hes getting 9.79 ltr/100!!!..........................