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1999–2005 Mazda MX-5 Miata Clutch & Drivetrain FAQ's

Please read our FAQs page to find out more.

Which clutch suits a bolt‑on NB vs turbo/supercharged NB?

Street NBs like an organic Stage 1–2 clutch and lightweight flywheel. FI builds benefit from higher‑torque or twin‑disc clutches while keeping pedal effort reasonable.

Is the NB Torsen LSD worth keeping for track days?

Yes—NB Sports commonly have Torsen LSDs that improve corner exit. Pair with alignment, pads, and tires for the biggest lap‑time drop.

5‑speed vs 6‑speed—what should I know when modding?

The 5‑speed shifts smoothly and handles power well; the 6‑speed offers closer ratios for track work. Both like fresh GL‑4 fluid and shifter turret service.