This 13B stud kit is used with Factory Mazda cast iron (Cosmo/FD) plates.
kit uses 7 longer studs (16 studs in total) with double ARP 12 point nuts
*Kit Includes:
- 9 x Ground 1/2 UNF Studs
- 7 x Ground 1/2UNF Long studs
- 23 x 12 point 12/UNF Nuts
- 23 x chamfer washers
- 23 x O rings
Note: If listed as out of stock. Contact us directly sales@billetrotary.com.au