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Discussion Starter · #1 ·
I just wanted to share that I replaced the stock exhaust and resonator on my car on Dec 23. I had the shop use 2.5" pipe through an X pipe to dual Magnaflow straight through mufflers. The car sounded good with a nice low rumble at low RPM. The problem was that I had drone from nearly 1800-2500 rpm with the most irritating drone at 2K and the loudest drone at 2.5K in the RPM range. I took the car back to the exhaust shop and he made essentially a H pipe across the back right before the mufflers and nearly all of the drone is gone now. I have attached some pictures of the exhaust from this morning. I will try to get a video uploaded to youtube later for a sound clip.
 

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Discussion Starter · #2 ·

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Maybe It's Just Me (Again)

Got the sound via cut/paste the URL. Sounds good. The looks of the setup is great!!! What does the butt dyno tell you? Do you mind saying how much it cost? cockerdogs
 

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Looks good. Sound clip didn't work 4 me. What did it cost?
 

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Sounds good
 

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Discussion Starter · #8 ·
The biggest change beside the sound is that it feels more responsive now, maybe a bit faster overall. The cost was $760 which included the mufflers, x pipe, the staggered exhaust tips, piping, and labor. They didn't remove any of the emission controls so I don't think I will have any issues with smog, also in California you are smog exempt for the first 6 years on new cars.
 

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Think it sounds pretty good. Looks good too. Nice work.
 

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Hey @EcoBoosted, could you make a rolling vid so we can hear what it sounds like?
 

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Discussion Starter · #11 ·
Yeah, I will try to get one made soon and post it on Youtube. If I can't get it done today then it will be at the end of the week.
 
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The biggest change beside the sound is that it feels more responsive now, maybe a bit faster overall. The cost was $760 which included the mufflers, x pipe, the staggered exhaust tips, piping, and labor. They didn't remove any of the emission controls so I don't think I will have any issues with smog, also in California you are smog exempt for the first 6 years on new cars.
Thanks, it looks and sounds very nice.
 

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Now that sounds more like it! That is almost exactly what I would do if I got an FS.

It still sounds a bit "farty" but at least it is a man's fart and not a little girls...
 

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It sounds pretty good! Certainly one of the best sounding FuSp exhausts I've heard yet (IMO)... alteast going by video alone. I think the X pipe does a lot to combat some of the uglier frequencies. It will be nice to see what kind of various configurations people here choose to go with.

Can't wait to see another drive by/interior vid
 

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Discussion Starter · #15 ·
Sorry guys - I tried to make a quick drive by video before changing the exhaust but I only had my daughter to help and she's only 7 so it didn't really work out. Anyway after a couple hundred mile trip in the car this week, I felt that there was still too much drone / resonance (I must be getting old). Anyway I still have the Magnaflows but I had the x pipe removed and the stock resonator put back in. I will make some new videos with the current setup. Still has the low rumble sound but it is overall quieter especially at 3500rpm to WOT.
 
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Sorry guys - I tried to make a quick drive by video before changing the exhaust but I only had my daughter to help and she's only 7 so it didn't really work out. Anyway after a couple hundred mile trip in the car this week, I felt that there was still too much drone / resonance (I must be getting old). Anyway I still have the Magnaflows but I had the x pipe removed and the stock resonator put back in. I will make some new videos with the current setup. Still has the low rumble sound but it is overall quieter especially at 3500rpm to WOT.
Could you list the part numbers for the mufflers and tips you used? Thanks
 

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Discussion Starter · #17 ·
I believe the mufflers are p/n 11236, the shop provided the tips so I'm not sure of the part number but they are 2.5" in to dual SS 3.5" out. Also I have uploaded new video to the same youtube channel with the car parked and the sound inside with the stock resonator reinstalled. Not really sure how to attach the youtube link correctly though.
 

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Hi! Just got a sport and am wondering if the front resonator is straight through? Meaning no gain in performance in removing it? And if so does it have a crossover built in to it, like an h pipe?

Thanks!
 

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Discussion Starter · #19 ·
I never looked inside of it after it was taken off and exhaust shop kept it there when I left. After about 3 weeks I ended up putting the stock resonator back in to quiet the drone in the cabin, after having the X pipe removed there was a big reduction in sound volume, mostly in the higher frequencies, and a small amount of (perceived) loss of power. It should also be noted that the X pipe and all of the piping was 2.5" and the resonator is 2.25" so putting that restriction back into the system would be enough to cause the power loss.

I currently have the stock resonator feeding to Walker SS Super Turbos (2.5" offset/ 2.5" offset) and it still feels more responsive than the factory setup and I probably dropped about 30lbs since the mammoth stock muffler weighs around 40lbs. The interior noise is a low growl when driving on the freeway or at low speeds and at makes a decent amount of sound when you get on it (though nothing like when the x pipe was installed).
 

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So with the x pipe and no front resonator its was pretty obvious you had exhaust work done even inside the car you heard it a lot? Mostly droan?
And when ya say higher frequencies did it sound more "exotic" like a Lamborghini (but obviously only using that for a reference... our lil v6 can only do so much).
Im always so curious.. i woulda examined that resonator when it was off! I havta see how things work!

Thanks for the reply.. and good documentation!

Josh
 
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