Cheby makes a small positive disp blower for the Cobalt SS, some guy go turbo, so they pop up now and then cheap. Don't know what the OEM price is, but I might be able to get one at dealer price. Rpbert works at a dealer. It's for feed about a 2.0L engine at 1 bar, so it will do a 1.0L at 2bar (30PSIG for those in Rio Linda).
Ditto for the Turbo Buicks. They went 1/2 bar for like 3.8L? couple decades ago.