Eventuri BMW F97 X3M / F98 X4M Replacement Panel Filter Set Tunes & Software Our Sport Headers use 200

Our Sport Headers use 200 cell HJS catalytic converters which improve exhaust flow while still cleaning your exhaust gases

and responsiveness

Sport Catalytic Converters

If its NOT Helical exhaust valves then RUN because you will be getting 100% guaranteed to fail Cheap Chinese exhaust valves

This product includes an ECU Tuning Upgrade

Eventuri BMW F97 X3M / F98 X4M Replacement Panel Filter Set Tunes & Software Our Sport Headers use 200The Eventuri panel filters are made using the same design philosophy of their full carbon fiber intake systems: cutting edge design, rigorous testing and prototyping methods. With a focus on performance, each design undergoes CFD analysis and is then validated at the prototype stage through volumetric airflow, intake temperature and extensive dynamometer testing. Eventuri publishes all the development information to illustrate the depths they go to in