But for a stock car dont waste your money. (I did it for the sound, i know i suck)Originally posted by SubaruMatt
I run the HKS SSQ BOV. It runs well with my car and also will run well with a stock car. As for running rich what happens is the WRX has a recirculating valve so when you run a BOV that is 100% atmosphere the ECU still looks for the air that is vented and its ratios are effected. Also all the guys at vivid racing run the HKS. So good luck.