Anyone know much about these spark plugs? Any good for a 4.6 DOHC stock engine?
OR
Stick to Motorcraft OEM plugs???
Iridium Spark Plugs for FORD Mustang SN95 5.0L - TPX023 | eBay
OR
Stick to Motorcraft OEM plugs???
Iridium Spark Plugs for FORD Mustang SN95 5.0L - TPX023 | eBay