Tomei Ti Racing Titanium Cat Back ExhaustThis is the ultimate muffler! The layout is as straight as possible, and the exhaust efficiency is ideal. With the power of a sports muffler, vehicles equipped with this muffler produce a high quality exhaust sound. Not too thick, not too thin, and with an ideal specification that emphasizes exhaust efficiency for increased power without sacrificing torque. The design also takes into account the exhaust volume regulations at various Japanese circuits