It's the cheap part that worries me. Most cheap filters either do a piss poor job or they're restrictive as hell.
As for the piping, with our AFM the resonator actually helps things (despite what most people like to believe). It's the accordian hoses which increase turbulence.
As for the piping, with our AFM the resonator actually helps things (despite what most people like to believe). It's the accordian hoses which increase turbulence.