Used JDM/European market (this one's from UK) flat-top (AKA square-top) intake manifold.
Professionally hot-tanked to clean out residue (note how clean insides are in pics below).
Genuine Mazda part #BP6Z-13-100.
Fits 1999-2005 1.8 Miata including MSM (not 1994-1997 heads).
Proven performance gains well-documented on forums.
Includes throttle body (not cleaned), EGR valve (not cleaned), fasteners, and a new genuine Mazda plenum gasket to seal between the upper and lower halves.
Note: If you plan to delete the EGR valve you'll need to make or buy two block-off plates (readily available from FM, BEGI, or TSE).
MSRP $739.49 / street price $628 (these prices don't include value of throttle body and EGR valve).
Mazda intake manifolds - MiataRoadster - High-performance customer service...and parts for Roadsters
Price reduced to $500 shipped in USA.
PM me with any questions.
Thanks for looking!