Just entertaining the idea of doing so. I'm very happy with my 4/4 as is (some current sensor issue but not the topic here). Priority has keeping the weight as it is (some Kg more are negligible). But I don't want to pay the price of 25Kg + in the engine bay for getting some horses. Once I let tune an Elise, 136 Toyota stock power up to 225 HP and 260 NM. Awesome power, but less nimble, adding the weight of intercooler, turbocharger, oil cooler, all the liquids etc.
So I'm wondering how much lighter is the Sigma 1,6 in comparison to any 2Liter Duratec.
