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I followed your photo to their eBay listing. The only mention of materials is that the flex is made from 304 stainless... They don't say what the cat or downpipe is made from.
I wish Walker made mandrel bends in their resonator pipe. That's a nice looking piece. I'm guessing that the flex will fail on mine before the pipe itself. Time will tell.
I followed your photo to their eBay listing. The only mention of materials is that the flex is made from 304 stainless... They don't say what the cat or downpipe is made from.
These people know how to play the games. That pipe would be double or more that price if it were solid 304 stainless.
I’ve had this set up for two years , I don’t crawl under my HHR much, but when I do, everything looks fine, a little rust but hey, I live in the land of ice and snow, we don’t eat any yellow snow!
GM has been using aluminized stainless exhausts on much of their line for decades. . Look up any description from any GM Dealer.
I also have it mentioned in some of my '08 HHR Literature.
And my former 1998 S-10 has same thing listed in the specs.
GM has been using aluminized stainless exhausts on much of their line for decades. . Look up any description from any GM Dealer.
I also have it mentioned in some of my '08 HHR Literature.
And my former 1998 S-10 has same thing listed in the specs.
I think they are only speaking of certain parts of the exhaust system. I cannot find a single thing about aluminized stainless exhaust on these. Maybe the years vary but I cannot find the info for any years and like I said, I spent some time on it as I didn't want the "look it up" comments like this place is so fond of.
Scroll way down to Exhaust: You will find Exhaust, aluminized stainless-steel muffler and tailpipe same as GM has been using since at least 1998 on my S-10
I think they are only speaking of certain parts of the exhaust system. I cannot find a single thing about aluminized stainless exhaust on these. Maybe the years vary but I cannot find the info for any years and like I said, I spent some time on it as I didn't want the "look it up" comments like this place is so fond of.
There is really no way of knowing without chemical testing.
There is such a thing as aluminized stainless (of virtually any of 50 or more grades of ss)
The reason for it is basically because the rust preventative outer scale of chromium oxide looses it's strength with higher heat.
Without going into a bunch of jargon, 409 is better for exhaust if you don't want looks, why most oems use it. Aluminized ss is better yet, but inhibits welding.
Personally I would want 100% 409 and no aluminized anything, that way I would be sure it's all stainless and should outlast the vehicle anyway.
05-30-2018, 02:15 PM
That's a nice looking piece. I'm guessing that the flex will fail on mine before the pipe itself. Time will tell.
