Product Reviews for HT1 SPARK PLUGS OEM REPLACEMENT
Need performance spark plugs for your Mustang? These HT1 spark plugs are a great upgrade when your factory plugs need replaced.
The same heat range as the factory spark plugs
High Performance design by Autolite
br> Attention :
On or around Feb 2008 Ford changed designs of the spark plug. They are a completely different thread than used from 2005 until the transition sometime in 2008. If your 2008 Mustang was built in 2008 you should consult with us before you purchase.