Anybody having trouble getting true duals? - Mustang Evolution

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Old 04-01-2014, 04:01 PM   #1
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Anybody having trouble getting true duals?

I've went to a couple shops so far, wanting to get it straight piped from the manifolds to the mufflers with some high flow cats, but none of the shops will do it, they said by law they cannot take off the y pipe, even if I do put high flow cats in there. They said they can only touch the cat back, so basically keep the y pipe and put on fake duals. I live in northern Wisconsin, you would think this would be easier, since I live in hillbilly country. Has this happened to anyone else? How did you get around it?
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Old 04-01-2014, 06:04 PM   #2
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Cut the y pipe after the converters right before they merge. That's what I've got done to mine. That's all they have to do. It took me forever to explain what I wanted to a shop so take pictures to help explain
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Old 04-01-2014, 08:01 PM   #3
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pacesetter makes an adapter to use on your ypipe to make it an hpipe..Then use a gt catback
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Old 04-01-2014, 08:43 PM   #4
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Put it on a trailer and take the tag off. Tell them it is your race car. You need some exhaust work done. Sound like you know what you are talking about and say...........I am getting some ported and polished heads, cam, stroking it. But......I need the exhaust done first.
Or you can cut the exhaust up your self and use flex pipe in the cats place. You will need the pipe widened a little unless you have a welder.
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Old 04-02-2014, 12:28 AM   #5
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legally they can not remove the cats, if you want dual exhaust just tell them to cut the pipe after the cats.
Even in cali though we have shops that'll cut the cats off. If they know you well enough.
Which is even better in humboldt, since it doesn't have yearly smog tests. Only need to get it smogged ONCE when you sell the vehicle.
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Old 04-07-2014, 02:45 PM   #6
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They should cut them right after the cats and go back. I live in southern Wisconsin and I had no problems
Finding a shop to do mine. I didn't know that they cared about emissions in northern Wisconsin
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Old 04-08-2014, 11:53 PM   #7
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How much does divorcing and sending them straight back normally cost at a shop?
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Old 04-09-2014, 12:54 PM   #8
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Quote:
Originally Posted by SpeedyG View Post
How much does divorcing and sending them straight back normally cost at a shop?

Mine was 120 but I had turn downs at the axle so it'd be a little cheaper than having them ran out the back
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Old 04-12-2014, 08:56 AM   #9
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Quote:
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Mine was 120 but I had turn downs at the axle so it'd be a little cheaper than having them ran out the back

Do you have a clip of how it sounds? Plus did it affect you gas mileage?
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Old 04-12-2014, 04:39 PM   #10
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Nah my gas mileage is the same. I can try and get a clip for you sometime soon
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Old 05-03-2014, 04:30 PM   #11
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If you end up doing it look at getting an x pipe
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Old 05-05-2014, 09:18 PM   #12
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I recently had the exhaust worked on, there was the y pipe. They ran it straight from both cats to the mufflers and made an h pipe for me. Granted it's nothing fancy like I've seen online but I guess it serves it's purpose. The previous owner had a cat back exhaust done. Must of bottomed out or backed into something and pushed one of the tailpipes back...ugh it was killing me!
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