COBB AccessPort V3 for Mazdaspeed 3 / 6
The Accessport is the world's best selling, most flexible, and easiest to use ECU upgrade solution for your Mazda. Unlock power hidden within the vehicle by replacing conservative factory settings with more aggressive calibrations. Follow our staged upgrade path with pre-loaded Off-The-Shelf (OTS) maps or use custom mapping for any modification level. It's the last engine management solution you'll ever need.
Impressed with the V3, almost went with a used V2 but I'm glad I spent the extra cash to get this. Has a pretty big screen and you can monitor up to 6 parameters at once. Easy install and no issues at all. Would recommend spending the extra cash if you are looking into getting an Accessort