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Old 02-19-2016, 12:12 PM   #41
nicolas_p
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Default Re: Flex pipe

I believe it is just a clamp on the other end of the section


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Old 04-30-2017, 05:56 PM   #42
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Default Re: Flex pipe

Finally getting around to this job but I've hit a major roadblock. The flex pipe and the muffler section are basically corroded together.

Anyone out there had this challenge and got past this? I even heated the outer pipe up cheery red with my bolt blaster and still didn't budge. I see there are pipe separator tools but I'm wondering if they will work in a situation like this.

I could cut off the old flex pipe of then chisel out whats remaining in the muffler section but that still seems pretty labour intensive.

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Old 05-01-2017, 07:56 AM   #43
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Default Re: Flex pipe

Just hit with this problem this weekend - fired it up after a highway run and it sounded quite a bit more flatulent. Picked one up on ebay for about 15 bucks and I'm not even going to try it myself. It's been on for 9 years and chances are it's not coming off easily.

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Old 05-04-2017, 06:34 PM   #44
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Default Re: Flex pipe

When I had this happened I also picked up a cheap one from Ebay or amazon, for 15 or 20, although shipping to Canada made it more like 50 and paid a local shop to do it for 90. For all the aggravation that this job would give, I figured the $90 was well worth it. I saved a lot of curse words I'm sure.

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Old 05-05-2017, 08:31 AM   #45
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Default Re: Flex pipe

Yeah... this one likely isn't worth tackling yourself. My local shop charged me a bit over $100 including the parts to fix this and had it done in a couple hours on a Saturday afternoon.

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Old 05-08-2017, 08:54 PM   #46
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Default Re: Flex pipe

Job done this afternoon. Part was about $15 on ebay and local shop welded it in for $55. Thanks to those who provided links.

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Old 12-04-2017, 10:26 AM   #47
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Happy Flex Pipe: Bear River Converters


My Flex Pipe was long overdue (leaking / noisier) until the check engine light came on solid. My code reader throw me Code P0068. I did check my air intake: It looks very clean. What happen was the computer was trying to compensate the exhaust emission by putting pressure on the air intake sensors.

Flex Pipe and Gasket Replacements:

1) Flex Pipe: Bear River Converters
Part Number: 20008DN
Size: 2 x 8
2) Gasket: GM 55557507

The good thing on this Flex: It is build of T304 Stainless Steel double braid, and T409 Stainless Steel end cap extensions. T304 does not rust, and T409 is good for high temperatures. The GM gasket has two Stainless Steel plates. Both are good quality. I believe!

I took to my local shop and they quoted me $400 to install. When I heard that kind of price, it tells me they do not know what they are doing! God Save! I do not want my Astra to be a Guinea Pig. So, I called my dealership where they did the Takata recall they recommended me an exhaust shop for custom vehicles. I paid $80 it took them 15-20 minutes to get done. That easy and professionally!

In my way coming back I looked over and over for the check engine light to come back: Nowhere to be found. It is well gone!

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Old 12-04-2017, 01:14 PM   #48
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Default Re: Flex Pipe: Bear River Converters

Quote:
Originally Posted by velocast View Post

My Flex Pipe was long overdue (leaking / noisier) until the check engine light came on solid. My code reader throw me Code P0068. I did check my air intake: It looks very clean. What happen was the computer was trying to compensate the exhaust emission by putting pressure on the air intake sensors.

Flex Pipe and Gasket Replacements:

1) Flex Pipe: Bear River Converters
Part Number: 20008DN
Size: 2 x 8
2) Gasket: GM 55557507

The good thing on this Flex: It is build of T304 Stainless Steel double braid, and T409 Stainless Steel end cap extensions. T304 does not rust, and T409 is good for high temperatures. The GM gasket has two Stainless Steel plates. Both are good quality. I believe!

I took to my local shop and they quoted me $400 to install. When I heard that kind of price, it tells me they do not know what they are doing! God Save! I do not want my Astra to be a Guinea Pig. So, I called my dealership where they did the Takata recall they recommended me an exhaust shop for custom vehicles. I paid $80 it took them 15-20 minutes to get done. That easy and professionally!

In my way coming back I looked over and over for the check engine light to come back: Nowhere to be found. It is well gone!
hmm.. I have been getting p0068 for a while. MY code reader always said it was intake/MAF. My exhaust has been noisy as hell (rattling). I thought it was a a heat shield but I never thought it exhaust rattle that could be throwing the code.

edit: this is what my code reader has been giving me. http://www.dtcsearch.com/P0068/?from=Torque

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Old 12-04-2017, 06:46 PM   #49
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Default Re: Flex pipe


It is not well gone, it is well alive: After 200 miles the Code P0068 did come back stronger than ever. I will check my entire intake components this weekend.
I did start and waiting engine to warm up. Suddenly check engine light came. Outside temperature is 50 F. I keep updated on thread Code P0068.

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Old 12-07-2017, 01:42 PM   #50
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Default Re: Flex pipe

Quote:
Originally Posted by velocast View Post

It is not well gone, it is well alive: After 200 miles the Code P0068 did come back stronger than ever. I will check my entire intake components this weekend.
I did start and waiting engine to warm up. Suddenly check engine light came. Outside temperature is 50 F. I keep updated on thread Code P0068.
Try cleaning your throttle body first. You don't even have to take it off. Remove the air intake to the TB, and gently open the butterfly valve*. With a clean rag and throttle body cleaner, wipe out as much gunk as you can. This worked for me and others for this code. Hopefully it works for you, because its very easy to do.

*People say you aren't supposed to do this, but if you are very gentle with it, it seems to be fine. But do it at your own risk.

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Old 02-21-2018, 09:49 AM   #51
FieroAlex
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2008 Astra XR
Default Re: Flex pipe

Looks like it's that time again. 3rd time since we purchased the car 8 years ago but this time I think the resonator is also leaking. I really find it annoying that there isn't any jobber support for this car and GM OEM parts are the only option. I mean patching it works but I hate knowing that the exhaust is just a collection of patches. I wish there was an euro source for jobber replacement parts that would ship to us. I've found the parts at more than resonable pricing but no one ships here.

I think this will be out last patching job for the Astra before we unfortunately move on.

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