Quote:
Originally Posted by g20beam
BM3 and JB4 I think are very similar, unless we get into reliability, I think performance wise, both are very good. What it does to the car and how it makes the car feel is probably very similar between the two.
|
Performance wise both might be very similar. But I believe the tune makes the car smoother since it changes everything across the rpm band. With the piggyback, the change is only after the turbo spools up. Before that, it feels just like stock. In a car with a tune, it probably feels faster than stock even before the turbo spools up.