Use 3/16" steel brake lines and a tubing bender- - - -no need to run flex lines unless the filter is mounted on the fender well. If it's on the intake manifold like most, there will be no relative motion between the filter and the engine.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!