I have one on my car. It is Stg2 now. With Stg1 map there is an increase in driveability as well as response. Low end is smoother and does not 'hitch/lug' like it did stock. Power is increased as well. A very worthwhile mod. Good for additional upgrades as well. I can provide ProTune maps for even more power.anyone get one yet as im debating to wait it out a little bit just wondering if it made any difference in drivability
I have a 07 wrx with 391whp and 385 ft-lb of torq. it was all manage by a Hydra EMS. the drive-ablity of that car was total S**T. EXcellent EMS but not every buys a 00 EMS for a subaru so finding a tuner was a issue and finding a Tuner experince enough to tune a HYDRA correctly and with no driving issue is impossible, unless your in a major city like seattle. for my 08 WRX i decided to go with the Cobb AP, Perfect drivabity , because it retains the factory controls for things like the AC condensers and alot of other things that makes driving terrible if not tune right. and off the back with a stock WRX and the AP and the stage 1 map you notice a slight increase in drivablity and minor performance gain. i would recommended for pretty much anyone.fast car is nice but fast and reliable car that drives like stock is better then perfect.