German tuning brands are stepping up their efforts to outdo each other in upgrading Mercedes-AMG's new 4.0-liter bi-turbo V8 in 'S' guise. Found in the C63 S sedan and estate, and the AMG GT S sports car, the V8 has now fallen into the hands of PP-Performance that has re-coded the mill's ECU.[...]
Source:
Carscoop