geogan
Petrolheads
Anyone know which is a good replacement airfilter/intake system. At the moment I just have a K&N panel filter which is in need of replacement. The car was mapped with a HKS superflow filter in it and right now it appears to be running too rich (0.96 lambda) so think need a better filter with more airflow (instead of a remap). What is this about the HKS being a MAF killer on Subarus? Is the HKS racing suction any better than the cheaper superflow or would a K&N Typhoon be better than either. Any other recommendations ? I would be doing remap afterwards so that isn't an issue. Want to get better airflow going - don't like the way it is running lean and appears undepowered even compared to old WRX in 1500-2500RPM non-turbo range...