How to read the comparison
Each row is the range from that car's guide: stock is the maker's figure, and Stages 1 to 4 are the tuners' own published claims. When one car is quoted at the engine and the other at the wheels, the tool says so; convert with the crank to wheel calculator before comparing. Open each guide for the parts, fuel and warnings behind every number. Or read a ready-made head-to-head comparison.