SRS EXHAUSTS CATALYTIC CONVERTER S TYPE JDM 2.5" (CIVIC 91-01/DEL SOL/CR-V 97-02)SRS cat replacement Civic, Del Sol or CR V S type A cat replacement with 2. 5 inch connection for your Civic, Del Sol or CR V? This SRS cat replacement stainless steel S type takes the resistance, which provides an original catalyst, and allows the exhaust gases to flow freely. An S type katvervanger features a low noise reduction and provides optimum gains. Let your engine perform unimpeded with the SRS cat replacement for your Honda Civic, Del Sol