Does Mace by any chance make Dual Throttle Body Plenums for a Ecotec?

Unfortunately we no longer manufacture or stock the twin throttle body manifold, due to lack of demand. Also, we have found that by fitting our intake manifold insulators and spacers as well as our 69mm throttle body you get approximately 90% of the gains of the twin TB manifold but for about 20% of the cost when you take into consideration that the twin TB manifold needs to be custom tuned.