H&R Sway Bar Kit for NA & NB MX5 - The kits are different so please select the correct chassis. These H&R sway bars are of the highest quality, an excellent bolt-on modification to reduce body roll & improve the handling dynamics of your MX5. Front sway bar 25mm. Rear sway bar 18mm. Includes new mount “D” bushes to suit. Consider a set of new sway bar links to completement these bars for a full refresh.