MillTek Audi RS3 Sportback 2nd link comp.(2011-2012) PorschePorsche/GT3 \/ GT3RSFabspeed ProductsFabspeed Products/Non-Exhaust ProductsPorsche/GT3 \/ GT3RS/992 GT3 \/ GT3 RS (2022+)Max Discounts/20 Percent Max The JB4 is the most

The JB4 is the most advanced and highly featured tuning system available for your B38/B46/B48 MINI

Save $300 when you purchase ECU and TCU software together

we knew that there was potential for much more

Switchable Mapping

MillTek Audi RS3 Sportback 2nd link comp.(2011-2012) PorschePorsche/GT3 \/ GT3RSFabspeed ProductsFabspeed Products/Non-Exhaust ProductsPorsche/GT3 \/ GT3RS/992 GT3 \/ GT3 RS (2022+)Max Discounts/20 Percent Max The JB4 is the mostSome vehicles Sport two Catalysts due to their dual pipe assembly. The Secondary Catalyst Bypass pipe removes the secondary Catalyst to further improve gas flow and reduce the restrictions caused by Catalysts within the exhaust system. All our performance exhaust systems are designed with you in mind, and we Cater to an ever expanding range of vehicles. We believe in continuous evolution, and our research & development team work throughout the year to