spark plug choice
Is it safe to use denso iridium IK20 spark plugs on my engine? its stock except for an aem intake. friend of mine recommended them but according to this site alloemautoparts they are for cold heat range for hi-speeds. whats that mean?
stick with stock, iridium wont do much for stock motor, the colder plugs are for turbo/supercharged applications
check out www.sparkplugs.com good info on plugs there
check out www.sparkplugs.com good info on plugs there


