See steps 9, 10, and 11 in this thread...

http://www.4x4wire.com/forums/showf...mp;amp;sb=5&o=14&fpart=1

If you let it go you may get misfire, which will destroy the cat convertor.

IMHO Bosch +4's don't provide any gains other than "feel good". I run OEM resistor plugs. They work fine.


1998 Sportage - Gone.
2004 Honda Civic Coupe.
2007 Suzuki Grand Vitara - She got it.