Originally Posted by Forged Performance
Notice that the stock tune is still very lean on tip in as trq is building up and all the way through the trq peak. This is dangerous! This is likely what contributes to many broken ring lands on otherwise stock cars. I can only assume this is done for emissions and mileage reasons and is a terrible decision on the part of Subaru. The OEM tune had horrible power, response, and driveability. Our Stage1 (for bone stock cars) custom mapping is completely a night and day experience. Not only is there massive trq and power improvement everywhere, but the tip in and part throttle AF ratios are much safer than the OEM tune. If you drove the car, you'd also find the throttle response is vastly improved. Gone is the non-linear lazy OEM throttle response as I completely remapped all of the throttle tables.
Great information and work! Can't wait to continue to follow this build up!
Man, why can't someone do a basic tune like this for the NA 2.5i cars? I know some of it is just the motor, but the stock tuning, throttle response, etc on the 2.5i is annoying at times! I am sure there is more in there somewhere just from tuning in regards to overall better driveability, not just power.
Keep up the good work guys!