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Old 10-07-2010, 07:57 PM   #1 (permalink)
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Thumbs up Exhaust System Development

I don't know if the OEM system bothers you, but on the 2010, there is an annoying crimp near the rear axles that just screams CHEAP. Plus, I think the MDX can benefit from a slightly throatier exhaust note. Nothing loud, but subtle and smooth.

With that said, we'll begin looking into options on our own, but we are OPEN to suggestions. Please do not be shy, because your input is valuable.

Thanks for reading!
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Old 10-07-2010, 08:34 PM   #2 (permalink)
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There was one guy who made a custom exhaust with downpipe, high flow resonators and mufflers on the 09 and it dynoed 32whp. The number includes a K&N drop in filter.
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Old 10-07-2010, 09:26 PM   #3 (permalink)
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I've heard that just removing the centre resonators alone would create an FX35 type sound.
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Old 10-07-2010, 10:57 PM   #4 (permalink)
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I'll be sure to pay close attention to the resonators and overall front to back design. I am also thinking about a true dual setup, so perhaps that will yield plenty of power for you guys.

Keep those suggestions coming, by the way. I really appreciate it!
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Old 10-08-2010, 01:11 AM   #5 (permalink)
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Heres a few samples of the custom exhaust the guy had.

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Old 10-08-2010, 09:21 AM   #6 (permalink)
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Tom, I have had numerous brands of cat back exhausts on my suvs, trucks and cars. One thing that separated the great products from the mediocre or bad products was the exhaust tuning. As you have experienced many of us buy MDX's for their smooth sporty quiet ride. I would be reluctant to purchase an exhaust system if it was too loud. Drone was one of the worst aspects of aftermarket cat back systems. In an SUV it is amplified in the cabin because the cabin makes it all the way to the back where the exhaust note exits. The product I would be interested in would sound close to stock quiet at cruising speed with no drone. Once you crack it past 2/3 throttle it get a more aggressive throaty note. Just my two cents.

Good luck and welcome.
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Old 10-08-2010, 12:14 PM   #7 (permalink)
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Thanks for the input thus far, guys. I do not think that we will have a problem with balancing power gains and db levels. I'm thinking that we will look at 2 options at this point.

1. A dual exit single catback.
2. A true dual exhaust.

Obviously, the second option will yield more gains, but there is plenty of power to be had even with the dual exit single catback.
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Old 10-08-2010, 01:18 PM   #8 (permalink)
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That photo is a good reminder how aerodynamically dirty the underside of the MDX is. Acura might pick up a highway mpg or two if they flattened that up a bit.

-BD
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Old 10-08-2010, 03:41 PM   #9 (permalink)
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i love the sound of the infiniti/nissan products. ex: g35, 350z, fx35, etc.
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Old 10-18-2010, 08:27 PM   #10 (permalink)
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These pictures of that true dual exhaust system tells a lot.....i would like to hear that set-up for sure, just look at the size of the pipes there, much more bigger than the stock ones, plus i seriously doubt that the front STOCK Y-pipe is effective, just look at how the pipes are twisted, small, and then welded up together.....i am pretty sure that a custom design like this would give a bit more power, but i'd really like to hear sound clips of that too.

A custom exhaust like that......this is what i am talking about, not a cheap aftermarket catback that would only sound ricey.....yeah baby.....better flow, better sound, better power too....!

I like that....! I would (if i could) also remove all those catalytic converters too....test pipes all the way...
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Old 01-17-2011, 12:50 AM   #11 (permalink)
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I would definately be in for one, as long as it fits a 2007. I am considering getting a custom exhaust mandrel bent locally otherwise. Very interested in high flow cats and catback, would be also be interested in seeing a new downpipe instead. What do you think, 2.5 diameter?
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Old 01-17-2011, 12:54 AM   #12 (permalink)
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By the way, if you were looking for a way to eliminate drone. check this out the dynomax VT muffler

Dynomax Performance Exhaust | Mufflers | Dynomax VT Muffler

Also you might be able to drum up more interest if you post this in the "2007 and newer" section of the forum
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Old 02-28-2011, 07:01 PM   #13 (permalink)
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Any progress update to keep us excited??
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Old 02-28-2011, 08:13 PM   #14 (permalink)
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Quote:
Originally Posted by 5abi View Post
i love the sound of the infiniti/nissan products. ex: g35, 350z, fx35, etc.
I wish the X had a sound like these as well.
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Old 03-05-2011, 04:46 PM   #15 (permalink)
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... Im close to getting the mid mufflers cut out
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