which one is better ? I like the loud blow off valve sounds but I am wondering if there are some negative things would happen if I replace HKS BOV on my EVO IX 06
if the car is stock the hks will cause the car to run very rich between shifts and could make it stall. the car counts the air going going into the engine (maf sensor). this is the sensor in the intake pipe. once the air is counted the engine is counting on it being there. so if you vent it to atmosphere then the car is looking for air that is not there anymore. it will cause problems. i would recommend to stay with the stock bov it is a good bov and will hold plenty of boost. good luck. HKS does make a recirculation kit for their bovs, if you run one of these then it should do just fine.
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