NGK Spark Plug - PTR5A-10 (4 Per Box) ronstan ball bearing car - series 19 - headboard - rc11960d Contoured shape has no sharp

Contoured shape has no sharp edges

Water Cooled Manifolds (complete with flanges & studs) -

With Plus One woofers and balanced dome tweeters

4mm (5/8") holes

suit 4 bolt square flanges (flanges not included)

NGK Spark Plug - PTR5A-10 (4 Per Box) ronstan ball bearing car - series 19 - headboard - rc11960d Contoured shape has no sharpNGK Spark Plug PTR5A 10 (4 Per Box). NGK have over 80 years of experience in spark plug manufacturing and they are the world leaders in spark plug technology. They have an extensive range of spark plugs, each with their own unique characteristics specifically engineered to its vehicle application and they are designed to suit a broad range of vehicles on Australian roads. With their dedication to quality, outstanding reliability and state of the art