What matters is keeping the actual power your engine has rather than trying to tweek it to get more power without thinking on how to keep the engine as cold as possible. (2/2)
One of the best "tunes" you can make to an R53 Mini is heat proofing the engine by insulating it and improving its cooling system -S and JCW-. Plus, finding ways to push outside the engine bay that heat. (1/2)