Wheel arch inside for the auxiliary cooler (left)

- OEM-style diffuser design

Testing was done back-to-back on the same day and temperatures were monitored to ensure consistency

Das KW V1 ermöglicht eine maximale Tieferlegung im geprüften Verstellbereich

HJS-Downpipe EURO 6 300 Cpi Sportkat ECE passend für F2x F3x G1x G3x B58 BMW Abgasanlage Wheel arch inside for theThis HJS tuning "downpipe" is designed for BMW 340i 440i xDrive with Euro 6 B58 B30A engines. The catalyst developed by the HJS tuning experts has gone through all development steps. Made from stainless steel and covered with the dome thermal insulation from motorsport, a high tech tuning product is now available for BMW drivers. The significantly reduced exhaust back pressure of the HJS tuning catalyst not only reduces temperatures in the