Originally Posted by mashimarho
Are there any cons to the ISO mod?
Per Terry on n54tech... "Map 0 is no longer a true pass through map. It disables the JB4 and targets 7psi across the board. On map 0 the car will drive and operate normally, can be taken to the dealer, reflashed, etc. But heavy throttle runs on map 0 will result in boost oscillation, uneven acceleration, and possibly an underboost code. Map 4 targets OEM boost values and should be used for dyno comparisons, driving around stock, etc."
If you consider that a con, then that's about it. I also know that since it draws a little more power it conflicted with my P3 vent gauge when it was polling the canbus, but running an analog line for it fixed the issue.