Well i did a search and didn't notice any one finding this or these what ever they should work i will run a part # search when it becomes wensday

http://www.ptuning.com/html/Item-Des...delDesc=Cobalt

 

http://www.ptuning.com/html/online-saleswizard_.cfm

 

OK I did the part # n 2.4 Cobalt and 2.4 HHR (both 5spd) Fly Wheel parts are the same so the HHR does have a start, Cat back on the market, CAI, Lighter Fly wheel (which really does help), And tunning. your welcome

 

They all work, it's that alot of poeple think a light weight f/w will give U more power. It only frees up the power U already have by reducing the reciprocating unsprung weight. I've installed lightened f/w's on many cars in my lifetime all the way back to the early 80's (VW's) when U had to put the stock 1 on a lathe & have the weight shaved off. But, it worked! It makes the throttle response very snappy & rev's like a crotch rocket. But yes it will make the car just a bit faster cause it has the same affect as removing weight from the vehicle. I had a 91 Suzuki Swift GT, 1.3ltr 16 valve & w/ a shaved f/w from 10 down to 7 lbs would try to pull the tires loose in first gear on dry pavement just from acceleration. The 1 draw back I know from this mod is U will notice U have to change your driving technic just a bit when taking off in firdt gear. It tend to want to bog a little cause it doesn't have the off idle torque w/ the lighter f/w.
As far as the intake & exhaust, I would just say do some research on these cause I know what works on a Honda or Acrua but these HHR's are all new to me. I'm sure the after market is gonna fill up quickly w/ so many of these things getting alot of interest. Sorry for such a lengthy post but I just wanted to make myself clear on alot of rumours & myths about the f/w's. Later!

 

re: lightened flywheels... "..reducing the reciprocating unsprung weight."

You've got to be kidding, right?

 

Maybe his engine is located on one of the wheels, and therefore is unsprung weight?

 

OK so now I have to be politcaly correct? Whatever, you get the idea of what I mean.

 

Hey! JoeR slammed, I just dunked!

All in good fun!