TOMEI EXPREME EXHAUST MANIFOLD For MAZDA LF 416001Brand TOMEI Product Number 416001 Compatible Car MAZDA Compatible Engine LF Product Description 4 2 1 Equal length layout is adopted, and it is designed to have uniform length and efficient collective shape so as to facilitate the exhaust of each cylinder smoothly towards the collecting part. For products specialized for competition, we also reduced weight and further improved performance by eliminating first catalyst. Compatible Model: CBA NCEC 5MT