I’ve had a Cobb / Litchfield Stage2 custom map 417bhp car pulled and drove great.
My car was held back, as the engine was still abit tight 1300 miles on new bearings, rods and pistons.
They did suggest their was more left in the car for a Stg2 custom map
I traveled from Manchester, it was worth the drive.
I still have my Cobb device but not sure which map is on it. Could be either the custom Litchfield or the FPM375, I also have the factory ECU again it’s either Litchfield or FPM375
RS Edition.
FPM375 Rocks
The rest of the “M” maps suck