DESCRIPTION
This inner gasket is required for correct fitment of a header or exhaust manifold on the 1990-93 (1600cc) Miata. Both an outer gasket and inner gasket are required. (Outer gasket = 3 layer, Inner gasket = 1 layers) These gaskets can be used as replacements for use with the stock exhaust manifold.
BRIAN'S APPLICATION NOTES: Note that factory gaskets are stainless steel layers just like this replacement and most of the time they can be used again and again...they do NOT need automatic replacement for adding a high performance header.