Nice man
That's not bad for 660 bones. Black is the best colour for that car in my opinion.

Thats a decent gain from just those few mods on your cobalt. Nothing wrong with that.The dsm are of course also pretty cheap to mod up to reasonable power especially the 14b cars.
Boost controller and fuel pump. Air filter.
Maybe better exhaust and would think they can approach the cobalts numbers. If not go a bit farther with some bigger injectors maybe a maf translator setup or safc and water /meth injection or some race gas or homemade race gas.
Thats the fun thing about the dsm ,lots of potential and easy to mod up and easy to bolt on much bigger turbos.

I also drive a cobalt SS 4dr.. It is my daily and I plan on keeping it that way. The DSM line up is much cheaper and has more bolt-ons available, now if I can get my hands on one again lol.

The SS you drive is a 2.4VVT not to be confused with the 2.0L in the SS supercharged/intercooled cobalt. But you are right nothing beats the bang for the buck with the DSM. The potential is unreal with the 4g63 from 200hp to 1000hp without costing u an arm and leg.

Was the Saturn silver? If so, he lives on my street. The car was in some magazine, I just dont remember what one.