That's a toughie... With 4 cylinder engines you would really have to do some serious modding in order to get some substantial HP. I would first start off with headers, a high flow cat high flow cold air intake and a cat back exhaust. Afterwords play with the fuel and external coil for added smootheness. OR you could always get a turbo. God knows there's enough room on a MTX 4 cylinder engine compartment.
A forum community dedicated to Mazda MX-6 owners and enthusiasts. Come join the discussion about restorations, performance, upgrades, modifications, classifieds, troubleshooting, maintenance, and more!