From what I know, these tunes basically do away with a lot of the measures that are considered when the OE tune is created.
Things like emissions compliance, hot/cold starts, cylinder pressure limits are not considered, so if you ignore these they should be able to pull more power/torque through.
Not sure on the reduced emissions claims that go with these though.. more power normally equals more fuel...
Best bet is to make sure they do a power run on the dyno before and after the changes are made... I would want to see the gain with my own eyes.
|