The best replacement for megasquirt is aem.

The best alternatives to megasquirt are rated as following:
★★★★★  aem
★★★★  microsquirt
★★★★  vems
★★★★  haltech
★★★  hydra
★★★  motec
★★★  hp tuners
★★★  nistune
★★  microtech
★★  hondata
★  omex
★  adaptronic
★  megajolt
★  aem ems
★  dsmlink
  sds
  autronic
  quarterhorse
  tweecer
  omex 600

Your alternative for megasquirt is not listed? Suggest!
Speaking about megasquirt, one probably shouldn't forget about msd.

Other search terms related to megasquirt and their ratings are:
★★★★★ msd
★★★ maf
★★★ ford edis
★★ coil on plug
★ wideband
edis
You have in mind a companion for megasquirt and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of megasquirt in all years. Click on graph for more.
megasquirt
aem
microsquirt