Hello! Its happened, after a few months owning the S3, I have decided I want to go to Stage-1 soon.
Hopefully you guys could help me as to which company is best to go with, i.e REVO, shark etc.
Is there noticeable differences between the maps, if anyone has any dyno graphs for particular maps that would be great.
Also I have seen people saying you might have to alter the actual ECU rather than map through the diagnostic port?
Would this be the case with my car? (59 plate Facelift 8P S3)
Thanks for your advice,