whats the top speed?

Yes, I believe it is electronically governed at 110 mph similar to the Saturn Ion, which it shares engine/transmission/basic platform with.

'06 is governed to 104, not sure about '08s

I have an 07 LS coupe, 5 speed. It gets just past 110 then governor kicks in (speedo reads like 112)

(I am not quite sure about the auto's, but...) I have the SS/SC 5-speed, and I have had it (on more than one occasion) at ~150 mph. The fastest I have had it is 155 mph, with a tail wind. But otherwise it is 151 mph, gov. limited at 5750 rpms.

get a chip then the skys the limit or at least until the motor blows

i have a 2006 cobalt ls, my cutoff was 170 km/h, topped that 5 times... a skyline weaved through me out of nowhere lmao.

not sure but i have gotten an 05 ls up to 105. I must say that it handled pretty well to. it felt really smooth, and it didnt feel like i was going to die. but if i would have hit anything (pothole, mouse, ant *lol*) i am pretty sure i would have died. lol

I HAVE A 06 SS COBALT, IVE HAD IT DOIN 220 KM IN FOURTH GEAR BUT STEEERING WAS VERY LOOSE I THINK ITS CAUSE I HAVE AIR DEFUSERS ON THE FRONT CLIP, IM NOT SURE IF THERE IS A CUTOFF AND IF THERE IS I WILL REACH IT SOON ..

My 06 cobalt took me up to 120 I am pretty sure I could have gone faster except I was in a constrution zone.

I have gotten the LS up to 116 after about 2 miles down the thruway lol

I have a 2009 SS Turbo.. Top speed is over 160 miles per hour;)

I dont have a speed limiter, thank you Trifecta tuning! On the dyno with calculations I maxed out at 178 mph. And by calculations they actually add in effects like wind speed and road resistance. 2005 Cobalt SS/SC Stage WTF

Wish we could race sometime.. Where you live?

Yup... same here. Trifecta tuning FTW!!!

160 sounds high. I ran against a 2009 SS turbo yesterday with my motorcycle. I just stayed with him to see what it would do. He pulled fairly quickly to 130 and then edged up to 140 and it was over. I continued to 150 and he was fading in my mirrors. My speedo has been checked against my gps so I know it is accurate.

the turbo cobalts can go over 160 mine basically willo go until i run out of gear since im tuned but the fastest i have been is 165 with rpm left

what kind of bike do you have?

you hit 150 on that cruiser? are you saying your speedo is accurate at that speed cause i call BS! speedo on a bike at that speed has a flux at 10% roughly. so if your gps is accurate at 85 then ok but it doesnt work at that speed. that takes a little balls. i hit 180 on my gixxer and pulled it back. that speed is ridic

FALSE mine tops out at 200 kph got pics to prove and its auto

DON'T KNOW IT'S ACCUAL TOP SPEED BUT I HAVE GOTTEN MINE UP TO 110 M.P.H. AND SHE HAD A LITTE MORE TO GO... WHAT STOPPED ME WAS THE SKINNY LITTLE TIRES. MY GUESS ON 215'S SHE MIGHT HIT 120 M.P.H.

I drive a 2006 LS couple with as follows:short ram air intake, intake manifold swap, fuel rail, injectors, trifecta performance tune, header, and cat back exhaust and have pulled 120+ on a good highway

My 08 TC bone stock speedo was pegged just over 160.. GPS said 162 going down I-10 3 seperate occasions

Deff can push 120+, I know 122 and even with bad tires and needing an oil change. A few tweeks and it would be a very fun car to play around in, very quiet, and handles well, they are just really long. But I love my 08 ls.

I Have a 2008 Pontiac GXP and im pretty sure it will smoke any Chevy made car with-in reason. If you look for a race HIT ME UP

I owned a 2006 Chevy cobalt LT and got it to 132 MPH. Took a while but got there. My cousin owned a turbocharged SS Cobalt and that thing ran 365 HP on the dyno. Not sure of the top speed but we got to 145 on a very short road.

Mine is an 05 with an 06 engine. I've go it up to 105 with my stock rims n tires but i need to recalibrate my speedo cuz I now have 17s. I've noticed my car isn't accurate. I think it now hits 109. Btw Pontiac is own by GM which owns chevy.

My 2009 Cobalt 2LT had the ecotec LAP 2.2L and the 5-speed manual, it also came with the 16" alloys and stock P205/55r/16 89H tires. The "H" designation is important as it is what determines your vehicles top speed. Since the stock tires had a speed rating H it's top speed is 130 MPH. I GPS verified 121 MPH at around 5000 RPM in 5th with a slight downhill. May have been able to increase with a longer stretch and a larger downhill run, but the engine itself was out of steam. Just bought a '14 Cruze with "S" speed rating tires, its electronically limited to 112 MPH.

my 2006 cobalt coupe 2.2L goes up to 140. I have had it to about 135. after 100 it starts to have trouble getting anymore speed. oil change, trans change, and fuel injector cleaner should be all you need to squeeze a few more ponies out of the little 4 cylinder . my cobalt, even without the cold air intake got to 125 ish.

I have a Chevy Cobalt SS 2005 and I've topped off 155 mph. Also its the supercharger edition, my guess that the turbo one can top off a little more.

I have an 08 2.4L sport I've gotten it up to 135 and then let off I'm sure I could've gone to 145 mph though.

My '05 cobalt is governed at 115 mph. not sure if someone changed it, or if that's how the factory made it.

got my 2005 cobalt ss supercharged to 160 mph still had about 1000 rpms left in 5th gear nothing but an intake and a tune for 17 psi as far as i know of. Bought it used that way.

I have had my 2005 Cobalt (automatic) up to 130 mph more then 5 times. That seems to be its cutoff unfortunately.

I have a stock 2007 Cobalt LS 2.2L Eco Five- Speed Tran. Go 75 mph in 4th I can shift to 5th and hit 115 mph downhill.