http://www.oreillyauto.com/site/c/search/Brake+Master+Cylinder/01292/C0066.oap?make=Chevrolet&model=P30&year=1990&vi=1059454 These things ~ probably should have put the term MASTER CYLINDER in there. You can even purchase Titanium Brake Parts for bicycles. It’s a common practice ~
I didn’t see Titanium anywhere and why spend extra for a Titanium master cylinder, why, to save weight on something that already weighs what, a pound or two? Where the fluid probably weighs more?