These Weistec filters are designed specifically for the vehicles equipped with the M177 BiTurbo 4.0L engine. The filters, while having better flow than the factory paper filters, are a thinner design which effectively increases the volume of the lower airbox, further improving response and flow of the M177 intakes which in turn helps the vehicle reach greater levels of performance
Stock vs Westec ECU and Filters
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For maximum results, the combination of our Weistec ECU flash is recommended.
Increased Flow Area
Optimized Airbox fitment over factory filter
Amplifies the performance of your Weistec ECU Tune