Fluid MotorUnion C63 AMG Midsection Video
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A few
Fluid MotorUnion C63 AMG Midsection Video
We finally put together a comparison video for the C63, showcasing the sound and power gains with the custom-fabricated C63 midsection.
Our midsection is half an inch larger than stock, and the FMU midsection also deletes both the catalytic converters and the resonator box.
As you can tell, there’s a distinct loudness gain with the FMU midsection. Although the mic did its best, the difference is even more pronounced when experienced in person. It’s louder, throatier, and provides for an overall addition to aggressiveness, be it at idle or at WOT.
On the dyno, *without any tuning*, the FMU midsection boasts a ~28 hp gain over stock across the powerband (after ~3500 rpm). The torque is increased by ~25 lb-ft across the torque band (after ~3500 rpm), as well. Once again, this was done on just the stock ECU, no tune at all.
Here's the youtube link: http://www.youtube.com/watch?v=G47RGCBNk7o
And here's a picture of the midsection, followed by the dyno chart (also at the end of the video):
And here's a link to a much larger version of the dyno chart, if you like big pictures: http://www.fluidmotorunion.com/wp-co...id-section.jpg
Our midsection is half an inch larger than stock, and the FMU midsection also deletes both the catalytic converters and the resonator box.
As you can tell, there’s a distinct loudness gain with the FMU midsection. Although the mic did its best, the difference is even more pronounced when experienced in person. It’s louder, throatier, and provides for an overall addition to aggressiveness, be it at idle or at WOT.
On the dyno, *without any tuning*, the FMU midsection boasts a ~28 hp gain over stock across the powerband (after ~3500 rpm). The torque is increased by ~25 lb-ft across the torque band (after ~3500 rpm), as well. Once again, this was done on just the stock ECU, no tune at all.
Here's the youtube link: http://www.youtube.com/watch?v=G47RGCBNk7o
And here's a picture of the midsection, followed by the dyno chart (also at the end of the video):
And here's a link to a much larger version of the dyno chart, if you like big pictures: http://www.fluidmotorunion.com/wp-co...id-section.jpg
Last edited by FluidMotorUnion; Oct 29, 2010 at 05:02 PM.
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2008 C63
Does this utilize the stock mufflers and exhaust tips? As well, how tight does it stay to the bottom of the car?
Also, why does your dyno graph state that the max hp is 331 hp? And, why does the graph stop at 6400rpm?
Also, why does your dyno graph state that the max hp is 331 hp? And, why does the graph stop at 6400rpm?
Last edited by Muskoka_AMG; Oct 29, 2010 at 05:12 PM.
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C63 AMG
I think it soudns bad ***!! The gains are significant as well. I just can't believe how AMG went nuts on the seats, brakes , motor, etc etc and left behind such ****ty header design...
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Thread Starter
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From: Plainfield/ Naperville, IL
A few
Sorry about the delay in response, guys. Thanks for all the compliments!
We'll have more information in this thread on Monday - pricing, availability, etc. Also, more information on the headers and oil cooler.
Bruce from TT Motorsports currently has our second copy of the C63 oil cooler, checking fitment on other models (we know that it will fit the C and the CLK, but not the E or the CLS, so far. although we are working on a fix for the E + CLS fitment issues).
We'll have more information in this thread on Monday - pricing, availability, etc. Also, more information on the headers and oil cooler.
Bruce from TT Motorsports currently has our second copy of the C63 oil cooler, checking fitment on other models (we know that it will fit the C and the CLK, but not the E or the CLS, so far. although we are working on a fix for the E + CLS fitment issues).
Last edited by FluidMotorUnion; Nov 1, 2010 at 12:25 PM.
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'09 C63 Performance Package - Steel Grey/Sahara Biege
Couldn't tell from the pictures, but is there bungs to plug the o2 sensors back into the new pipes?
Also, just a question for the forum...didn't Super' try this solution without success?
It looks great and I would be very interested if it works as advertised and the price was right.
Also, just a question for the forum...didn't Super' try this solution without success?
It looks great and I would be very interested if it works as advertised and the price was right.
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Couldn't tell from the pictures, but is there bungs to plug the o2 sensors back into the new pipes?
Also, just a question for the forum...didn't Super' try this solution without success?
It looks great and I would be very interested if it works as advertised and the price was right.
Also, just a question for the forum...didn't Super' try this solution without success?
It looks great and I would be very interested if it works as advertised and the price was right.
Last edited by Sincity; Oct 31, 2010 at 11:33 AM.
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'09 C63 Performance Package - Steel Grey/Sahara Biege
He did something like this with PLM exhaust manifolds, GT-Pro X-pipe, and custom made DPs. I don't recall him ever getting 28 to the wheels. But, he didn't use piping that was .5" larger than stock. I believe many said that the bottleneck is with our stock exhaust manifold's outlet diameter where it connects to the DP is the bottleneck. We need an independent tester because this is interesting.
If this gets 28hp by itself and say a tune by itself adds ~50hp, then you could go without headers and still net 78. Arguably a tune would add even more as it could also build from the benefit of not having cats. At this point, the longtube headers at current price points would never really be worth the investment if it adds less then 25hp... I always wondered if the benefits from the LT were really attributable more to eliminating the first cats.
I thought Super's testing helped figure that one out, but know we're right back to it!
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Alright, time to address!
This mid-section goes from stock C63 flanges to stock rear section flanges, thus utilizing the stock mufflers and tips.
Since our latest Dyno Dynamics software update, power has dropped about 50hp on generally all cars. Stock E63's that were once dyno'ing closer to 400whp are now around 350whp-360whp. Stock C's were around 345-355 are now around 300-310whp.
The only reason it stops at 6400rpm is due to the fact that we had trouble setting up the roller tacho. We usually use the OBD tacho, but the pulse signal through OBD is too spread out showing a scraggly, inaccurate graph.
Pricing is currently being determined, there will be a group buy special upon initial release, as well.
The oil cooler should be released very shortly, and a few different header designs are currently being tested, too.
We haven't tested with a hi-flow primary cat yet, but we may have something tested in the near future!
Yes, there are bungs in the midsection for the o2 sensor placement.
All in all, thanks for the kind words, guys! As you can see from above, we're currently hammering out some details, but we'll keep you all posted as quickly as possible. We're glad that you like what you see!
Since our latest Dyno Dynamics software update, power has dropped about 50hp on generally all cars. Stock E63's that were once dyno'ing closer to 400whp are now around 350whp-360whp. Stock C's were around 345-355 are now around 300-310whp.
The only reason it stops at 6400rpm is due to the fact that we had trouble setting up the roller tacho. We usually use the OBD tacho, but the pulse signal through OBD is too spread out showing a scraggly, inaccurate graph.
Pricing is currently being determined, there will be a group buy special upon initial release, as well.
All in all, thanks for the kind words, guys! As you can see from above, we're currently hammering out some details, but we'll keep you all posted as quickly as possible. We're glad that you like what you see!
Last edited by FluidMotorUnion; Nov 1, 2010 at 12:47 PM.
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2021 Porsche TTS
So if I am reading correctly, this deletes primary and secondary cats and resonators as well.
very nice looking product.
It seems to be a similar product to the downpipes and X pipe that GT pro sells and everyone seems to think this yields no gain. Super is the one who tested this and showed no gain (he had straight pipes when he tested and did not add the X pipe).
Maybe the 1/2 inch diameter makes a difference as well as the overall design where the X is.
Someone who has experience building this stuff (I am sorry I do not remember member's name) stated on a few posts he thought the X pipe should be as close to the front of the car and this design does that.
Am I missing something as it appears the picture of the OEM pipes shows the first and secondary cats and not the resonators. The midsection would then not replace the resonators or is there another part to this?
I agree we need independent testing and I am happy to be the one doing this if Fluidmotorunion wants to do that.
very nice looking product.
It seems to be a similar product to the downpipes and X pipe that GT pro sells and everyone seems to think this yields no gain. Super is the one who tested this and showed no gain (he had straight pipes when he tested and did not add the X pipe).
Maybe the 1/2 inch diameter makes a difference as well as the overall design where the X is.
Someone who has experience building this stuff (I am sorry I do not remember member's name) stated on a few posts he thought the X pipe should be as close to the front of the car and this design does that.
Am I missing something as it appears the picture of the OEM pipes shows the first and secondary cats and not the resonators. The midsection would then not replace the resonators or is there another part to this?
I agree we need independent testing and I am happy to be the one doing this if Fluidmotorunion wants to do that.
Last edited by emericr; Nov 2, 2010 at 11:14 AM.
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I would also love to have a video of a drive by since when you are inside a building, the sound is different and not under load.
How about feedback about any droning at lower rpms?
How about feedback about any droning at lower rpms?
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From the picture it looks like.......
It connects at the stock oem header flange goes back deletes primary and secondary cats. does a mini-x and connects to resonator. The O2 bungs are there at least 1 set. All we need is price. Hopefully less than 1000 group buy???.
It connects at the stock oem header flange goes back deletes primary and secondary cats. does a mini-x and connects to resonator. The O2 bungs are there at least 1 set. All we need is price. Hopefully less than 1000 group buy???.
Last edited by GHAZAN; Nov 2, 2010 at 11:26 AM.
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Sorry for the confusion guys.
It deletes the primary and secondary cats. It connects right before the OEM resonator thus keeping it in the system and functional.
I think for price we're going to set retail at $1,890 similar to what E9X M3 X-Pipe mid sections run, even a little less.
Group buy special will be set at $1,390 for 10 sets with deposits down!
It deletes the primary and secondary cats. It connects right before the OEM resonator thus keeping it in the system and functional.
I think for price we're going to set retail at $1,890 similar to what E9X M3 X-Pipe mid sections run, even a little less.
Group buy special will be set at $1,390 for 10 sets with deposits down!
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If we can get some independent testing of the hp increase or if you are willing to back your claim (dyno before and after), then I am interested.
How about my previous questions (video under load and outside) and droning?
How about my previous questions (video under load and outside) and droning?
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I will work on some in car as well as exterior videos. Believe it or not, utilizing the OEM rear section with the OEM resonators and mufflers eliminated almost all drone. You end up with a somewhat loud rumble under load outside but in the car it remains very pleasant. (Speaking from driving impressions in a 63 with Long Tubes as well!)
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'05 C55
The MB AMG tax is just ludicrous... $1900. for some welded stainless pipe and a couple of flanges? Even the GB price is too high IMO.
Check out the price on this 3" stainless steel off road pipe for the 2011 Mustang GT for comparison... (yeah, I know they build more Mustang GT's, blah, blah...) Just look at what you get for the $.
http://www.evoperform.com/shop/index...roducts_id=940
Too bad Magnaflow doesn't build parts for the C63...
I was interested but now I'm not... GLWS.
Check out the price on this 3" stainless steel off road pipe for the 2011 Mustang GT for comparison... (yeah, I know they build more Mustang GT's, blah, blah...) Just look at what you get for the $.
http://www.evoperform.com/shop/index...roducts_id=940
Too bad Magnaflow doesn't build parts for the C63...
I was interested but now I'm not... GLWS.
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I agree on the MB gouging. I refuse to pay that kind of money but I guess it is based on supply and demand and it appears they are plenty of people willing to pay the higher prices because they have deeper pockets.
When you have people paying $3500 for a tune, I am sure they think $1900 for downpipes is a bargain
When you have people paying $3500 for a tune, I am sure they think $1900 for downpipes is a bargain
amg, c63, dyno, fluid, header, headers, il, long, mid, midsection, motorsports, motorunion, naperville, section, tube
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