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15mm Intake (+1mm head diameter) - 6mm Stem Dia
and 10psi springs
Allows you to mount wideband O2 sensors pre-turbo and get accurate AFR readings
The gate flanges allow for all the common 44/45and 46mm wastegate with positions to easily allow for plumb back or vent to atmosphere
Process West Intercooler Charge Pipe Kit Service/Maintenance 15mm Intake (+1mm head diameter)The Process West Charge Pipe Kit for the 2015+ Subaru WRX, is the best upgrade charge pipe kit on the market. Made in 2 pieces it is easy install, without the hassle of trying to feed one big pipe into position and includes all the necessary couplers and clamps for the perfect fitment. The charge pipe kit provides a much smoother air flow path from the turbo to the intercooler, over the factory pipe. Finished in a nice black powdercoat, the upgrade