Mount Type: Bolt On; 3. Mounting Location: Valve Cover; 4. ENA Ignition Coils Features: plug-and-play design that allows for easy installation and are compatible with popular vehicles such as 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 T100 4Runner Tacoma Tundra 3.4L V6.