8MM Custom 90-97 Mazda Miata 1.6/1.8 Spark Plug BSI Racing, Inc. » Product Catalog » Ignition » 8MM Custom 90-97 Mazda Miata 1.6/1.8 Spark Plug 8MM Custom 90-97 Mazda Miata 1.6/1.8 Spark Plug Call for Price!