Hello...I have to replce my ignition coil, The oart is about $235 from the dealer. Online sites show prices ranging from about $55 - $135 but they also show 2 different styles of ignition coils. One has a cone shape on the end and is called a direct ignition coil, the other is a small "box shaped" device...just called an ignition coil. Which one do I need or will either one do the trick? Thanks.