Change oil, then again after a week or so..

Not sure why you'd want to get to work faster....home faster, maybe. Anyhoo...this ought to do it:



If that's not your style, this would probably work too:

 

Take the hood off. Everybody knows it's faster with the hood off.

 

Don't forget the stick on vents and flame stickers. Those are good for at least 10 hp a piece

 

and the spoiler on the back

 

I have the stock spoiler already, and the plastic Folgers container, while looking AWESOME when in place, tends to melt off after a bit when duct taped to the exhaust pipe. Flame stickers......hmmm.

 

Go get a big ole can of beans from Costco and tape that sucker to your tailpipe. They don't melt and they sound real sweet bro

 

Yeah, I'd eat the beans, weld that can to my exhaust, and we'd both burble on the way to work.

 

not the stock spoiler i mean the big aluminum wing one that just has to make it faster.

 

"Daaaammn, that's cool" - Joe Dirt.

 

That's the one

 

The Eco-Tech in your Cobalt has the coil pack over the plugs right?
As the Cat begins to age and plug up you'll build additional heat on top of the engine (whether the coil failing causes the cat issue or vice versa is debatable).

If you changed plugs and boots, I'd go for new coil pack and change the ICM cassette at the same time. GF's went out ~180k on her '02 Grand Am. Timing chain/tensioner let go on it ~210k

 

You guys are forgetting the mailbox on the hood!

 

Seriously, I did do back to back oil changes, back in the day. On a truly filthy engine, I'd add rislone, not kerosene, before the first oil change, and used the cheapest oil I could get. Then, a hundred miles or so later, another one. This time using a quality oil and filter.
Nowadays, though, what the others have said is true. Oil is much better, and if you've been keeping up with basic maintenance, then that's not going to be your problem.
First I'd look at the injector flush, then maybe the other stuff.
If none of that works, THEN and only then, would I buy a spoiler. My 94 T bird has one, and I SWEAR it makes me go faster.

 

Roadkill style