Keep your WMI system in top condition by filtering out potential contaminants before it becomes a problem
Keep your WMI system in top condition by filtering out potential contaminants before it becomes a problem
4AN T
Allows your JB4 to control a WMI pump and solenoid for dynamic progressive flow mapping!
For most JB4 applications.
This product was last offered at the strikethrough price on
05-02-2026
Completely transform your engine bay while increasing performance and sound featuring a high flow Filter
Heavy-duty yet compact tank that is compact and flexible allowing for a wide range of mounting on any flat vertical surface in the trunk.
Low restriction cloth air filter which adds more air flow : black powdercoat : Blue elbow : cloth filte
CARB certified for sale in all 50 states
Open-Air-Box air intake system
2X Entries For Our 25th Anniversary Sweepstakes!
High performance carbon fiber intake
Elegant looks with enhanced performance! Open box intake.
Engages water-methanol system at 35PSI Adjustable from 25-50psi
Includes 2.5 gallon tank, red high temp nylon tubing, and quick-connect fittings
Part of the JCW Tuning kit (Oiled filter)
For John Cooper Works tuning kit
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
07-24-2026
Quick connect union T-fitting for 1/4" Nylon