Magnaflow 94315. I put a pair of these in my '91 200 20v last year to pass CA smog and they worked perfectly. Go to the web site at magnaflow.com to find a local dealer. George Sidman Chairman & Chief Technology Architect WebLOQ, Inc. 2801 Monterey Highway Monterey, CA 93940 - Suite H Monterey 831 372-2600 x 227 Santa Clara 408 282-3548 Mobile 831 601-1776