Tuning

Larger fuel injectors can leave an engine running rich, unstable at idle, difficult to start, or no more powerful than before. The injector may have enough

Aggressive-looking canards can add little usable grip while bringing more wind noise, drag, and visual drama than measurable performance.

A 400 hp dyno sheet can look convincing until the car sits in traffic, loses power on the next acceleration, or starts slipping its clutch a few weeks

A Stage 1 remap can make a car pull harder and feel more responsive, especially if it has a turbocharged engine. The advertised gains can be tempting

An inconsistent launch and a harsh no-lift shift can both look like an RPM-setting problem. In practice, activation logic, torque reduction, clutch-switch