ESR Ballast System Half Weight Plate (7.5 lbs)

The weight plates have four holes in them, they lay flat on the base plate and attach with four 1/2 in grade 8 bolts. Weight plates can easily be changed in and out with little to no hassle.

Vehicle Applications:

• 1990-2005 Mazda Miata 1.6L NA6 & 1.8L NA8, NB1, & NB2