Originally Posted by biggersNISMO

UpRev allows you to do almost everything.

Up to 5 Maps on cruise control equipped vehiclesIdle RPMSpeed LimiterElectronic Throttle Control to achieve Wide Open Throttle at all speeds.Rev LimiterDTC disableAFR TargetsFuel CompensationIgnition Timing AdvanceCam Phasing for equipped vehicles.MAF transfer functionCranking Enrichment and Ignition AdvanceInjector LatencyK Fuel MultiplierIntake TempCalculated Load vs. RPMMinimum Effective Injector Pulse Width

UpRev is NOT a limiting factor... You can do everything with it on the VQ platform.

My 2 cents bro.

History is repeating itself with Stillen again.
Everyone ditched them in the 350z community for tuning reasons as well.
Look at all of the my 350 z forum stories on them.

I've benefited from Stillens Headers, Intakes, and HFC's.... But when it comes down to their FI options, the research shows to stay away.