Go to ebay and buy a GSR intake. Search the forum for that topic. Someone has a complete write up with pics and the use rname of the person who sells the kit. Thats prolly the best thing to do, or you could go with a PRM intake....
1993 Mazda Mx-3 GS-Sold 1992 GS "The Bucket" Gone. 1993 GS 2.5 KLDE. Current daily.
92 GS 5spd for sale! Sold it....after I got a hatch cover in great condition 92 GS Auction Car, most expensive non-running mx-3 I have ever bought... Parted out and Crushed.