going to street port
 

finally going to start my street port project my question is what would u recommend do I leave my rotors 2mm or get them 3mm? I ask becuz i'm starting to here that if u go 3mm and when the engine goes it detroys the housings more than a 2mm would is this true or false if not please let me know what u think I'm keeping my same setup t60-1 at 15psi

There is no reason to use 3mm seal nor will they outperform 2mm seals. There is a reason Mazda switched and continues to use 2mm for that past 33 years!

Not to mention the hardened groove that gets destroyed on the rotor edge when milling for 3mm.