I have a 1990 DX Sedan 1.5L and the exhaust is rusting away right after the resonator. The rest of the exhaust isn't in that great of a shape eithe, so I'm looking for a cat back system replacement, but I can only seem to find systems for the 1.6L. Does anyone know who makes a cat back performance exhaust system for this platform or do I have to custom make one?