Want to modify or upgrade your 2004-2005 Cadillac CTS V with aftermarket wiring harnesses? At OGTuners.com we have a great selection of aftermarket performance parts for your Cadillac CTS. We have 3 wiring harnesses parts available in our store with free shipping to the Continental US.
FAST Wiring Harnesses Ex
 $446.15 301108FAST Wiring Harness Main LS1LS2L IN STOCK (1) - LOW SHIPS FROM MANUFACTURER (Last checked: 11/04/2025) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2007 Cadillac CTS V |
 $334.95 301972FAST Wiring Harness Xim For LS1 IN STOCK (5+) SHIPS FROM MANUFACTURER (Last checked: 11/04/2025) Shipping times vary by Manufacturer (Can take days or weeks, contact us for an ETA) 2004-2007 Cadillac CTS V |
Kooks Headers Extension Harness
 $41.80 CAS-109004Kooks 04-08 Cadillac CTSV & All Pontiac G8 12in - 02 Ext Harn Each IN STOCK 2004-2007 Cadillac CTS V |