To be honest... I'm not 100% sure... the one shop that runs them is pretty secretive about it... here is a link to one of their cars if you want to see it... They wont even let him post pictures of the new manifold I believe. Its nuts haha, how secret they are being about a "dead" GM platform like the Cobalt. I am pretty sure they are using a stock ECU with modified programming via HP tuners dual injectors are not stock. They are simply using them to get enough ethanol in the cylinders. The factory turbo cobalts have direct injection (LNF engine), the factory supercharged cobalts (LSJ engine) have standard port injection. Everyone uses HP tuners for domestics it seems like.
http://www.cobaltss.net/forums/pictu...d-list-263582/