German tuner Hartge continues to improve their BMW X1 program. In the latest iteration, Hartge gives the following X1 diesel a quad exhaust system: xDrive18d, sDrive18d, xDrive20d, sDrive20d and xDrive23d.

The stainless exhaust system features four tailpipes each with 80mm diameter. The upgraded exhaust improves not only the appearance of the X1, but also the acoustics.

In Germany, the price for the Hartge X1 exhaust system was set at 1,785 euros, and as mentioned before, it is only available for the diesel models.

Petrol powered X1 models are expected to receive a similar exhaust system offering.