Even if BMW builds exclusive rides all adorned with plethora of high-end features at the exterior as well as inside, not to mention the impressive powertrains under the hood – there are particular models that deserve special treatments from tuning companies in order to become more appealing and eye-catching.

And there are plenty of famous tuners to deal with customizations at the exteriors, and others that are specialized in delivering the best packages under the hood. One of those tuners is no other than the German-based house G-Power.

G-Power is a famous aftermarket shop that has been creating powerful programs on different BMW products for so many years that we lost count of the exact number. Anyway, they recently added to other special models to their impressive portfolio.

It now includes to rides that haven’t received the best appreciation so far – the E46 330i from the 3-Series and the E85 Z4 Roadster, both receiving a power boost under the hood.

We are looking at the tuner`s SK Plus supercharger, available for just 3,867 euros, and which comes with some impressive customizations under the hood, including an ECU remapping.

For instance, the 330i`s 3.0-liter straight-six petrol burner is now churning out 306 horsepower and 360 Nm of torque, which is quite impressive from the stock 231 horsepower and 300 Nm of torque.

The E85 Z4`s 2.5-liter naturally aspirated flat-four pot has also been tweaked to deliver more than the standard 189 horsepower and 245 Nm of torque. Unfortunately, for this particular ride, we do not have the official numbers.