The tuning company G-Tech has recently introduced their newest package for the Fiat Abarth 500 receiving the title RS-S. This performance package improves the performance and power by nearly 65%. To accomplish this massive feat, G-Tech’s team added larger injectors, performance spark plugs, along with a cat-back exhaust system with Garrett loaders. So what is this power increase? Well, the standard Fiat Abarth 500 comes with a 1.4L producing about 135 HP and 206 Nm torque.