Rcexl makes the DLE ignition. They're the same.
If I were going to buy an ignition outright, I'd probably go with an RCXP. It's a direct replacement, with the latest circuitry, said to be a little smaller, with the bonus of being a little less money.
http://www.rcextremepower.net/rcxpignitions.html
Ask about the 45 degree cap!