I recently installed a GMPP (touring) catback from a Cobalt, the catback will require some cutting and welding because of the location of the HHR gas tank.
The sound is just what I wanted, not to loud but louder than the stock exhaust.
I did not see much of a change on the gas consumption, it`s winter, I should see a difference during the summer driving.
Hope this info will help those who were thinking of getting their exhaust system replaced.
This white 2009 Panel is becoming the Panel that I enjoy driving every day.
(sound, extra ponies and it`s look)

 

Wait.... so you got a GMPP exhaust for a Cobalt and installed it in your HHR?? Why not just buy the GMPP exhaust that's made for the HHR?! You could have saved yourself the hassle of cutting up the Cobalt exhauast with a direct fit HHR exhaust.

 

my cobalt catback fit just fine. no cutting at all. i got it cheaper thats why i got it.

 

Umm, because they dont make one for the 2.2/2.4?

 

Really? I swear that when I looked through the GM parts catalog at the dealer, they have a catback listed for the 2.2/2.4 HHR (maybe Chevymgr can say??). There's also a vid on Youtube of someone w/ the GMPP catback on the HHR. Ah well, guess I could be mistaken. Either way, to the OP, it's installed, so go and enjoy it!

Later
Allex

 

Do you mean this?

Exhaust System by GM
Part Number: 19158628

Performance Exhaust System, Catalytic Converter Back Single Rear Exit (w/ RPO Code LE5, L61, w/o RPO Code LNF)

This single outlet exhaust system, constructed of T-304 stainless steel with mandrel bent tubing, has a semi-polished muffler with distinctive performance sound (much more aggressive than stock) and also includes a welded on exhaust tip.

 

YES! Thanks for finding that. IIRC it's listed as available for the 2.2/2.4 HHR. I remember seeing that because I was looking for a GM cat-back for the SS when I bought mine, but only found that one.

Later
Allex

 

EDIT: I found the exhaust I believe the OP has installed due to his referencing the "Touring" version. No wonder he had to cut it up some to fit, it's designed for the non-LNF Cobalt (i.e. LSJ) . Anyhoo, looks like a nice piece though. http://www.crateenginedepot.com/stor...1-P1379C0.aspx

 

Well, blow me down and call me stumpy, I guess I was wrong!! Thanks for correcting me.
Time to look up a price on that puppy.
EDIT: gmpartsdirect says: GM LIST: $800.00 - OUR PRICE: $582.40
Damn thats pricey!

 

Heh, that still beats the almost $1K I spent on the Hahn DP + Catback!!!