Mazda Miata NB (1999-2005 US model years): Suspension mods

Coilovers, sway bars and strut-tower brace Limited

A mod guide ranks coilovers as a top bang-for-buck suspension mod, lists many NA/NB-compatible kits, and says sway bars and a front tower bar tighten handling.

Caveats: Listings are from one editorial roundup and were not checked against vendor charts. Safety-critical.

Parts: Tein Street Basis Z coilovers