delta88

Does anyone have a mail order solution for buying a replacement down pipe / Cat section pipe? Mine has cracked right off the flange at the flex and my temp weld job busted when I hit 180mph..

I was looking at the zzp down pipe but not even they know if the cobalt section fits an HHR..

This platform is going on 6 yrs old. either they have heads in the sand or they are hiding something.

2007 LS 2.2 Auto

BlackScreaminMachine

Trial and error sir. Unfortunately that will be your best bet.

txbass06

From what I've seen and heard, and DP from a cobalt with the 2.2L 2.4L or 2.0L SC will work on our cars

delta88

bump a lump. The car needs to be replaced a 3rd time THe first to times was the flex cracking. I didnt investigate this to far as I had a shop puta mesh flex in for waay to much moulah!!

Its either wait and buy a zzp prefab next week or grab a universal cat and put it in myself.. or just run a delete pipe and deal with the eng code
With the cat stopped up this thing weezs, chokes, coughs, and gags.

delta88

Alright kids

In a pinch things needed to be done and since the cat is on backorder from GM and I have to drive this for work I welded up a 2.5 pipe in place of the cat and used the ol non foulder trick on the rear O2 to keep form setting a code.
If I rag on it I will get a code after several hundred miles but normal driving yeilds no code and quite a GAIN in performance according to the BUTT DYNO.



Still looking to see if anyone knows if a cobalt downpipe is the same as an HHR.

prod

Does it look like these would fit? Hes asking $45 each. Designed for cobalt ss/sc.

delta88

Well I was looking for a bolt in replacement. At most I would be up for welding in a flange but seeing how that is just the initial dp section there would be a bit for fab.

If it was my personal car I'd be in for it but this is a company car that is leaving soon..


Anyone in the market for a cheap black hhr in Michigan?