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dude834
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Name : Russ
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PostSubject: down pipe install   Sun Sep 04, 2016 11:00 pm

Need advice on installing 3" down pipe on my 95 Riv. L67.....best product,mods i may need first etc..As of now i have only installed a FWI ......also need to find an STS strut tower brace...
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th3fr4nchi5e
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PostSubject: Re: down pipe install   Mon Sep 05, 2016 12:44 pm

You dont NEED any supporting mods to install a 3" downpipe, but it wont really improve power without other mods like higher ratio rocker arms or dropping supercharger pulley sizes.

There is no bolt up downpipe available for the 95 riv. I made mine out of a U-shaped piece of stainless and a straight piece of stainless cut and welded to the shape of the piece I cut out of the factory exhaust.
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dude834
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PostSubject: Re: down pipe install   Thu Sep 15, 2016 9:12 am

Thanks Dave..
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matt270avian
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PostSubject: Re: down pipe install   Sat Sep 17, 2016 4:12 pm

th3fr4nchi5e wrote:
There is no bolt up downpipe available for the 95 riv. I made mine out of a U-shaped piece of stainless and a straight piece of stainless cut and welded to the shape of the piece I cut out of the factory exhaust.

Have any headers been confirmed to fit the S1? It looks like the exhaust manifolds are interchangeable........
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th3fr4nchi5e
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PostSubject: Re: down pipe install   Sat Sep 17, 2016 8:11 pm

I was under the impression that they were different just from never hearing of someone trying to swap them but I havent the slightest clue
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Karma
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PostSubject: Re: down pipe install   Mon Sep 19, 2016 10:43 am

Series one has siamesed runners. So its exhaust goes: 0-00 instead of 0-0-0 like the series 2. Then even if you cut one runner on a series 2 set of headers and modified, welding onto S1 flanges, the whole angle at the head is different due to the S1 having a 1" taller deck. Soooo, not remotely a nice swap. Though I'm sure anything is possible with enough drive...

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