Originally Posted by Spooler

Did you read???

One of the newest popular forms of racing spreading across the nation right now is “no-prep” type racing. In this type of racing it is more about traction management than it is about making monster amounts of power. These racers are often starting out with as little as 8 psi on the starting line, and wanting to finish the race with 40+ pounds, where the power can finally be put down at the end of the race track. A 3 port boost controller will not allow you to run a small wastegate spring and still obtain that level of boost pressure. This is where a 4 port comes into play. Yes the resolution of a 4 port isn’t as good as a 3 port, but having less resulotion isn't as much of a big deal when you have such a large spread from min boost level to max. For many racers the loss of resolution is easily worth the gain in min-max ability of boost . For street driven cars, especially FWD cars, this is a HUGE advantage. These big power street cars, or traction limited FWD cars, can go from being absolutely worthless burn-out machines to somewhat manageable.