Review on Delphi GN10328 Ignition Coil by Kendro Givens

These spools work well but have one major flaw. If you ever need to replace them, you may need to remove the valve cover. Why? The spark plug rubber cap is not connected to the coil. I have replaced the coils in both the 328i and X3. I also had to change the valve cover gasket on both. 3 out of 6 coils left a spark plug cap on the spark plug when I removed the coils. In this case, the spring in the spool will also fall out. Luckily I already removed the valve cover which gave me enough room and support to remove the rubber boot from the spark plugs. Pretty big design flaw.