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Engine - Exhaust Topics about the exhaust system discussed here.

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Old 07-12-2008, 03:20 AM   #1
3" downpipe fit to '88 shelby z swingvalve???  
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Title says it all, i am wondering if i can get a 3" downpipe to fit with my swingvalve on my 1988 shelby z. I had read somewhere today that the stock swingvalve for those cars was a 2.5 sv. If thats the case shouldnt i be able to connect a 3" dp
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Old 07-12-2008, 08:25 AM   #2
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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Get a 3" DP/SV combo from TU. Without the bigger SV, doesn't it seem kinda pointless?
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Old 07-12-2008, 10:37 AM   #3
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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88 Daytona Shelby Z have a 2.25 inch large flange swingvalve. 3 inch downpipe can be bolt onto it.
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Old 07-12-2008, 11:39 AM   #4
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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i didn't think TU was doing the 3"SV anymore?
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Old 07-12-2008, 01:31 PM   #5
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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ya i was going to say tu doesnt carry that part anymore or else i would have gone with that option, since the exhaust will fit on my swingvalve, does any port work need to be done?
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Old 07-12-2008, 02:47 PM   #6
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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According to my source, 3 inch swingvalve will be available very soon.
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Old 07-12-2008, 05:05 PM   #7
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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is somebody else gonna be doing them? inquiring minds want to know...
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Old 07-12-2008, 05:16 PM   #8
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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Turbododge.com policy does not wish its members to promote non vender here on turbododge.com, so I won't. Feel free to give me your e-mail address though.
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Old 07-12-2008, 09:53 PM   #9
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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If there is a 3 inch swingvalve available id love to get my hands on one.

And if not there is still MUCH to be gained by bolting a 3 inch exhaust onto a stock swingvalve, just not as much as if you had a ported manifold and bigger swingvalve
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Old 07-13-2008, 12:44 PM   #10
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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satelite67@comcast.net send away!!!
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Old 07-14-2008, 03:21 PM   #11
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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also if i was to stay with my stock exhaust system once i get the new engine in. . . . . how hard would it be do install a full 3" exhaust from the turbo back??? If you say it can be done with the stock swingvalve can i do that while the head and turbo is still on the car? Im looking right now to get my car running right, then im interested in getting the power i want. So can i run stock exhaust now, and upgrade to a 3" later down the road with my swingvalve
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Old 07-15-2008, 10:34 PM   #12
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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does anyone know if the stock swingvalve fits because of the large flange? If so im just going to port it out to a 2.5 flow and throw her back onto the car
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Old 07-17-2008, 02:02 PM   #13
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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they still have the 3in down pipe

I'd also be interested in a 3 in sv

PM me if anyone has one for sale
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Old 07-17-2008, 02:05 PM   #14
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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The unmentionable site have the information.
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Old 07-17-2008, 07:13 PM   #15
Re: 3" downpipe fit to '88 shelby z swingvalve???  
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nope doesnt have the info just says that they have another batch that they are picking up soon
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