Customer with EVO 8 was considering a muffler upgrade from a stock muffler along with a boost increase. He decided to purchase after seeing the "CZ4A Ti Muffler" user voice on TOMEI's home page when he was considering newly released titanium muffler by TOMEI. Until installation, we thought that we would lose lower speed range due to shallow layout andΦ80 piping, but after installation, the lower speed range was not sacrificed at all, and the mid range torque had increased and would rev up to the limiter without any stress. There isn't a muffler readily available that gives performance result as well as this. Also, you don't need to worry about the flange sticking out so it is recommended for lowered vehicles as well.

Mr. Mamoru Nakamura

Customer with EVO 8 MR had only replaced the rear muffler, and was going to increase the boost so we decided to review the muffler. Since the customer regularly enjoys going to circuits, so with lightness as importance, considered to go with a titanium muffler. The mufflers these days restricts the exhaust sound, and there is tendency to create high exhaust pressure, so I was looking for something that is more free flowing, and the titanium muffler for CT9A was just released by TOMEI. It is structured with straight design so there is no problem with it being free flowing, and inner silencer was included so I purchased it immediately. When installed it was quieter than expected without installing the inner silencer so I was surprised. If the inner silencer is installed you should have to worry about the sound...
With mufflers that increases the exhaust pressure, performance wise even the boost is increased the fuel will not enter,