NA/NB Miata Engine Mounts: Stock vs Competition NVH
US-market 1990-1993 NA6, 1994-1997 NA8, 1999-2000 NB1, and 2001-2005 NB2, including Mazdaspeed only where the exact mount seller explicitly confirms it.
WHERE TO BUY
Open an exact listing, then confirm fitment, stock, price, and shipping with the seller before ordering.
Seller links checked . Prices and availability can change.
Engine mounts only. Match NA/NB and exact seller application, inspect brackets and installed height, and choose stiffness with an explicit NVH tradeoff. Manual/automatic or Mazdaspeed applicability must be confirmed where cataloged. PPF alignment belongs with MIA-0023.
OEM numbers
No universal mount part number or hardness is claimed. OEM-style, Mazda competition, rubber and polyurethane mounts must be bought as the exact matched application/pair the seller specifies.Supersession
No competition or polyurethane mount is an OEM supersession. This page does not create a conventional separate transmission-mount part where the NA/NB PPF supports gearbox-to-differential alignment.
Fitment
Engine mounts only. Match NA/NB and exact seller application, inspect brackets and installed height, and choose stiffness with an explicit NVH tradeoff. Manual/automatic or Mazdaspeed applicability must be confirmed where cataloged. PPF alignment belongs with MIA-0023.
Aftermarket options
OEM rubber, Mazda competition rubber, and stiffer polyurethane/race mounts trade isolation for control. Replace as a matched pair unless the manufacturer directs otherwise; inspect PPF/drivetrain alignment separately.
Before you buy
Stiffer mounts increase vibration, noise and harshness, especially at idle. Confirm exact application and hardness. NA/NB drivetrain support also depends on the PPF; this page does not tell buyers to order a conventional separate transmission mount.
Research and fitment sources
Supersede reviewed 8 unique research sources for this guide. 6 also appear above as a seller or official action and are not repeated here; 2 additional citations follow.
Research last verified .
