DIY y-pipe install, worth it?? - Defender Source
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  #1  
Old October 14th, 2016, 08:52 AM
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Stephen
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DIY y-pipe install, worth it??

sometime in the near future, I need to install a new y-pipe with cats on my D90. I'll either do that or cut the cats off completely. Curious to those who have done it yourself, is it a complete pain in the ass to DIY this? I'm good with a wrench, but nothing frustrates me more than getting half way into something, only to have spent 3 days on some bolt that I couldn't move and needs to be plasma cut off, and so now I'm looking at a tow. So curious if this is something that's a no brainer as a DIY or just pay the shop and be done with it.
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  #2  
Old October 14th, 2016, 09:03 AM
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Save yourself some grief and just have it replaced .


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  #3  
Old October 14th, 2016, 09:58 AM
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Chris Davis
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You have to at least anticipate breaking a down pipe stud... Not a huge deal if your used to that sort of thing but if your not then take it to a muffler shop and have them do it.
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  #4  
Old October 14th, 2016, 10:16 AM
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Stephen, If you're good with a wrench, dropping the y-pipe isnt that hard.
One or three studs may come out of the exhaust manifold---I've yet to have one break off.
The bottom flange bolts might have to be cut but you have better access down there.

Once the Y is off, you can cut a 3 sided *door* in the top of the cats to "clean and inspect" them.
Then, just bend it back down and weld it up and done.

YMMV

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  #5  
Old October 14th, 2016, 11:43 AM
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Quote:
Originally Posted by Nomar View Post
Stephen, If you're good with a wrench, dropping the y-pipe isnt that hard.
One or three studs may come out of the exhaust manifold---I've yet to have one break off.
The bottom flange bolts might have to be cut but you have better access down there.

Once the Y is off, you can cut a 3 sided *door* in the top of the cats to "clean and inspect" them.
Then, just bend it back down and weld it up and done.

YMMV

.
yeah, I was thinking about just dropping it and 'inspecting it' and reinstalling it. I dont have a welder though, though the cost would be cheaper than a new pipe and I have other crap I need to weld. If I register locally I have to be able to pass emissions. I could leave the D90 at my farm in South Carolina though and just register it there with no emissions testing.
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'95 RRC LWB Aspen Silver Ed. (sold)
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  #6  
Old October 14th, 2016, 12:31 PM
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Be careful. States really don't like multiple residencies or auto registrations. I just dealt with the issue, California thought my Florida registered Defender had stayed too long.

Mike & Carrie

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Originally Posted by signalMTB View Post
yeah, I was thinking about just dropping it and 'inspecting it' and reinstalling it. I dont have a welder though, though the cost would be cheaper than a new pipe and I have other crap I need to weld. If I register locally I have to be able to pass emissions. I could leave the D90 at my farm in South Carolina though and just register it there with no emissions testing.
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  #7  
Old October 14th, 2016, 08:15 PM
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I went with a magma flow y pipe... it all came off ok as well... so was easy
Or give them the part/part # and have them do it..
In ca I'd think it was too much of a pita to go catless

Imho
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