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Discussion Starter · #1 ·
OK guys, I was looking at the underside of my car the other day when I was fixing one of my mudflaps. I saw that true dual exhaust would be really easy to make happen. It looks like it would only take about 10 feet of pipe and maybe 2-3 hours of work with proper tools. It looks like there's definitely room for another section of pipe right beside the one that's currently there which could feed the right half of the engine's 3 cylinders. Is a true dual exhaust something that would be a good idea or would it be a waste of time in comparison to the factory exhaust that's already there? In comparison to a cat back, would a true dual system help the vehicle perform MORE or LESS? The mufflers obviously will be changed, but I want to kick a** in silence, so I really don't want anything louder than Flowmaster 60's.

In the future, XCal with CAI and Eibach springs will happen. I want to save the XCal for last to see if I can get a great tune. I PM'ed one person on the board with this question, but I wanted some opinions from the group.
 

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Discussion Starter · #4 ·
Mason, you don't think my mileage would go to crap by doing that? I'm worried that I might throw all kinds of codes, but if I do this after I install my SCT and CAI, I can probably readjust some things to make things come back again. I just hope that won't SLOW ME DOWN instead of make me faster (which is kind of the point of doing all of this anyway).

These would be great - I'm not too sure how Ford will like it though if I were ever to have a problem with the engine of the car (since I got a VERY extended bumper to bumper warranty). I figure the Duratec 30 and Aisin tranny can handle a lot. So, I just might do Eibach's first, followed by the SCT and CAI, and then last the exhaust.
 

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Discussion Starter · #8 ·
[quote author=seawolf link=topic=86064.msg1641645#msg1641645 date=1187193336]
Of note: Those MSDS headers still Y into one pipe, which it seems would bolt nicely to the Magnaflow setup if they fit Fusions, but is not a true dual...is there enough room for two flex pipes?
[/quote]

See, I don't know - I'm going to have to research that. I'm headed to the dealership right now to get a friend of mine who is going to be doing some electrical work for someone else today - might take my digicam and see if I can get back on the floor and snap some photos of a Fusion up in the air.

Adding a full exhaust can take away from low-end torque, making you a bit slower off the line, but adds mid-range torque and high-end HP (making you faster on the freeway)
See, this is why I think having the Magnaflow might be more beneficial than true duals - having that one little restriction seems to matter big time with takeoff.

Someone needs to take nice under-body shots around the trans cradle so we can see what we have to work with. Anyone out there with a lift and a camera care to snap a few shots?
Let me see what I can do.
 

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Discussion Starter · #9 ·
Well, I wasn't able to get those pictures, but looking at the underside of my car I think there is definitely room for two pipes. The main restriction seems to occur at the front of the vehicle, but after that it seems relatively wide open.
 
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