RV6 Downpipe Kit for 09-14 TSX I4 (2.4L)When the K24Z3 was first introduced, many people were disappointed with the integrated exhaust manifold that made conventional headers obsolete. This is especially true since the K Series platform produced some very impressive performance gains with quality headers. When you look at the O. E precat, you can easily tell it was designed to be made cheaply and mass produced. The components are stamped and welded with no consideration for turbulence or