http://www.zzperformance.com/cobalt_...=540&catid=155


Thats the downpipe i want with the high flow cat.

I just want to make sure i'm getting a 3 inch downpipe and cat but I want it to bolt up to my current corsa exhaust which is 2.5 inch.

Stainless downpipe with cat - $199.99


Model
2005+ Cobalt Supercharged

Option 1
Bolt in for 2.5 inch cat back (+ $20.00)

Option 2
With front and rear gaskets (+ $14.00)

Option 3
none selected

This is the options in my cart. would these be correct without making me get a 2.5 inch downpipe?

I just wanna make sure before i pay for it that im getting a 3 inch d/p cat that bolts to my 2.5 inch cat back.

Thanks, sorry if it sounds dumb but it confused me with their options.

 

yeppers

 

cool, so zzp can only come in a 3 inch right? They dont sell 2.5 in at from what i was reading but it wasnt 100% clear to me.

 

im not sure as i don't have it but i would think they would.

 

do i need the extra o2 bung that it says for wideband? I dont have a wideband i just have the stock 02 sensor and i wanna make sure before i order it. I think no but just double checking.

 

what kind of headers do you have?? and you should go 3" dp with 2.5 exit. i had a corsa and it will bolt up perfect

 

I have the garrett turbo manifold. Do i need the extra o2 bung they have listed if i dont have a wideband?

 

bump for answer about o2 bung

 

if you plan on getting a wideband ever it's easier just to have the bung there .. otherwise it's a pita to put in.. this way you just have to get a bung plug (which zzp also sells) and when/ if you get a w/b you can just pop out the plug and put in the sensor i got one on my header dp combo and i dont have a wb yet but it's a good precaution

 

but it has a sopt for the stock o2 sensor already without any extra charge, right?

 

correct