ReaperZ1769

I made this thread to see if anyone else has ever had their stock ss downpipe crack like mine has twice now, about a year ago i noticed a sound that resembled an exhaust leak, i checked it out and suspected it was the down pipe but sent it in for warenty work and sure enough it had cracked in the bend, and today i noticed the same sound again, i looked and found a hairline crack in the dp again! is this just me or is this a problem with the gm dp?

chris88z24

Never heard of this in my 3 years of being on this forum.

You must be the first Cobalt SS in North America to have the stock flexpipe crack.

It's common. Even if you don't beat on it, the movement of the motor ruins the flex section.

ReaperZ1769

that would be my luck especialy since its happend twice now! lol yeah, i assume after market ones would be more durrable right? i mean aside from getting new engine mounts to isolate the movement i dont know what else to do to prevent from breaking another one..its possible i broke an engine mount when i wrecked it 2 years ago, ill have to check them out...hopefully not though that would be a bitch

SS FREAK

iTrader: (1)

no mine did the same thing. mine cracked at the flex pipe! but it gives you a reason to upgrade lol

chris88z24

I went aftermarket. I chose ZZP and it was a HUGE mistake. Their quality is worse than OEM.

Go with Clear Image Auto or (expensive) Hahn. Or another stock unit.

ReaperZ1769

it is expensive, but i love hahns stuff, i already planed on getting hahn stuff when i finally upgrade it seems the only time i upgrade my car is when the part im upgradeing dies though haha, the hood was thanks to a deer runing out infront of me lol, infinity speakers due to stock ones blowing, subs were the only thing i bought on sheer want and desire haha

ronn

iTrader: (3)

It sounds like you either broke a mount or tweaked the frame/motor out of alignment when you wrecked it. Those DPs are expensive (cats) and GM doesn't want to be replacing them on a regular basis. I would assume they make them at least as good and probably better than aftermarket in quality.

ReaperZ1769

true true, yeah ill have to take a look tomarrow when i have daylight again haha, i know the fram was tweeked when i wrecked it but that was supposedly fixed...but idk, we shall see...but your right i dont want to have to be replaceing the things every year or so, that would add up in about a minuet haha

Macgyver2484

iTrader: (3)

My check engine light went on almost as soon as I swapped it. I should have went Hahn. I have their exhaust and love it.

chris88z24

That's because the exhaust flows more and the stock engine calibration thinks there is a problem with the catalytic converter. It has absolutely nothing to do with the quality of the exhaust component installed.