Just wanna try something new. Anyone used Stillen Filter with Injen pipe for intake. Because I am sick of loosing low end power from Stillen Filter. I also bought a Franken Car mid pipe and try it with Stillen Filter. It improved a little bit for low end, but it improved a lot more at MID RPM. Anyway, Loosing Low end power was still occured. I am thinking to replace the filter with others brand like HKS and Apexi. I think Stillen Filter is good at High RPM for AUto Maxima. Hybrid Intake is good at Mid RPM, but CAI Injen might good at Low RPM. I want to try