Cobra Replica Electrical and Wiring - Shell Valley Classic Cobra Replica Electrical and Wiring. Shell Valley offers complete wiring harnesses, Battery installation kits, horn sets and turn signal switches for your Cobra Replica. Click image or text to view details Polished Billet Battery Hold Down Only $89 Polished Billet Battery Hold Down. Cobra Wiring Harness: Car & Truck Parts | eBay This is a set of oem nos 2000 cobra r wiring harness. you will get, engine harness, body harness, transmission harness, and ecu harness. the chance you will find this set of wiring new again is 0%25. 2003-2004 Ford Mustang SVT Cobra DASH Fuse Box Wiring Harness Supercharged Eaton.