What Andy is proposing is the sensible thing to do. And where are people getting these $5000 and even $10000 prices for stand alone aftermarket boxes? Last one I used was CIVINCO for less than $1000; very user freindly and did every thing you would ever need. Heck there are great piggy back units out there for less than $500 and full blown Squirt ECUs for $700. I don't think I would ever go back to Motec.