According to them...yes.
....for the Mk2 and 2.5.
Made exclusively for us, this great exhaust has 57mm main pipework and a 90mm dual sleeve exit pipe.
Fits Mk2/2.5 1998>2005 ......
Check their Ebay shop from time to time if you are not in a hurry...you could bid cheaper.
Also
http://cgi.ebay.co.uk/MX5-Mk-2-2-5-Stainless-Exhaust_W0QQitemZ270553115179QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item3efe38ea2b
....for the Mk2 and 2.5.
Made exclusively for us, this great exhaust has 57mm main pipework and a 90mm dual sleeve exit pipe.
Fits Mk2/2.5 1998>2005 ......
Check their Ebay shop from time to time if you are not in a hurry...you could bid cheaper.

Also

http://cgi.ebay.co.uk/MX5-Mk-2-2-5-Stainless-Exhaust_W0QQitemZ270553115179QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item3efe38ea2b