We have designed our own EGR block off kit for the NB (1999 - 2005) Miatas that want to delete the EGR system.
Our kit comes complete with 2 plates and 1 plug.
The basic kit weighs only 3.7oz and includes the following:
(1) Plug or Cap depending on model year.
(1) Block off plate - Intake side.
(1) Block off plate - Cylinder head side.
(2) Flanged head bolts for Cylinder head side plate. The factory bolts are too long.