http://www2.towerhobbies.com/cgi-bin...&I=LXGGP7&P=ML
I know it is over $ 100 but it is not by much and i have heard very good things bout this engine fro, reliablilty and power. I know it will be the next engine for my nitro evader. And i amm pretty sure it is a direct fit for the DTX .18 if u are still using the stock mount.