Standard gets you:
Up to 5 Maps on cruise control equipped vehicles Idle RPM Speed Limiter Electronic Throttle Control to achieve Wide Open Throttle at all speeds. Rev Limiter DTC disable AFR Targets Fuel Compensation Ignition Timing Advance Cam Phasing for equipped vehicles.
Tuner gets you:
5 Maps on cruise control equipped vehicles Idle RPM Speed Limiter Electronic Throttle Control to achieve Wide Open Throttle at all speeds. Rev Limiter DTC disable AFR Targets Fuel Compensation Ignition Timing Advance Cam Phasing for equipped vehicles. MAF transfer function Cranking Enrichment and Ignition Advance Injector Latency K Fuel Multiplier Intake Temp Calculated Load vs. RPM Minimum Effective Injector Pulse Width
Definitely Tuner if you got the extra cash. Much more option to crank up performance. Both will still require $250-$300 worth of dyno time. Good luck!
