TOMEI EXPREME Ti TITANIUM MUFFLER For WRX STI USDM EJ 440006Brand TOMEI Product Number 440006 Compatible Car WRX STI USDM Compatible Engine EJ Product Description MORE POWER, LESS WEIGHT, DRAMATIC CHANGE FOR IMPREZA GDB High quality production, for true competition use without compromise. Only the best Titanium grade materials are used. From the special racing layout design, made as straight as possible, to the high flow silencer. We have poured our knowledge into it all. When you see our EXPREME Ti system,