Does anyone use HAYES ROTARY shimmed oil relief valve (oil pressure regulator) that is rated to bypass pressure to 80-85psi??..They have a rebuilt one that they sell for $32.00 as oppose to the new ones that RacingBeat and Mazdatrix sell for 90 some dollars..They will also include the washers to shim the front one.. Are the rebuilt bad idea??? Besides being new what is so special about the RacingBeat ones...Thanx in advance!
FCTURBO2