BMW G02 X4 M40i xDrive (B58 - 354 Hp - models with OPF) 2018 ->

Supersprint is always a step ahead.

We already have developed a Turbo Downpipe kit for the 2019 BMW X4 M40i xDrive, with the OPF / particulate filter.

Our Downpipe kits are ready for sale, being available in multiple options.

We offer them with a HJS Motorsport 100 cpsi Kat, or with a HJS 200 cpsi high volume, 130mm Kat, and in a straight-thru, cat-deleting version.

Each one of the Supersprint downpipes is equipped with a plug-in port for the oem pressure sensor hose.

However, the low-resistence catalytics are not all there is to it; the perfectly shaped, smooth-radius merge cones (made out of strong, lightweight metal sheet, not cast) are equally instrumental to providing for a major reduction in exhaust gas backpressure over the stock catalytic; also, it is designed to bolt on and accept the dual barrel, M2 Competition-style std. OPF system.

Needless to say, the Turbo Downpipes are only the starting point for Supersprint.

In fact, our R&D crew is already working on a full exhaust system, including options which totally eliminate the OPF / particulate filter.

Systems for replacement of kat for OBD II car models (with lambda sensors before and after the kat.)

These systems can only be used for racing purpose exclusively, in conjunction with the modifications of the engine management system. If used with a stock “ECU”, malfunctions may occur. All modifications must be carried out by qualified personnel only, under the liability of the car owner and at his expense.

Supersprint guarantee is limited to the quality, workmanship and correctly fitting to the intended car model for all race products.