Greddy 12+ FRS/BRZ Supreme SP ExhaustThe Supreme SP for the Scion FR S & Subaru BRZ features a large horizontally mounted, 3 section muffler with a center inlet and an unique, tuned, internal "Y pipe." This directs exhaust gases through a center chamber to reduce overall sound and improves flow to the outer straight through sections. These outer sections of the muffler have our updated high temp, internal sound suppression system. The exhaust is finished off with dual GReddy slant cut,