Both are good engines so long as they are under warranty, but out of warranty they are BOTh expensive. The OPTIS have the air pump along with an electric fuel pump and then 2 injectors per cylinder for the air and fuel. The ETEC uses 6 injectors and an alectric fuel pump, but it uses ALOT more electricity to fire the injectors which is one of the main downfalls of the FICHTS. The OPTI uses high pressure air to shoot the fuel into the combustion chamber whereas the ETEC uses an electric solonoid to do it. It's really a toss up either way to me as I wouldn't want either of them out of warranty.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR
2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD 
AND THE PINK JEEP!!!! R.I.P.
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