i have a bluefin superchip remap, its very smooth, its not 310bhp though like advertised my car was on the rollers at minisport saturday it made 294bhp, but then it is 5 weeks old the torque wasnt as high either, 274lb/ft. power delivery is very liniar much faster than standard 4000 revs upwards, well worth it, te revo remap will give you more bhp and torque, but im happy with the bluefin.