ARH Long Tube Headers/200 cell cats/x-pipe install
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From: eNyCe
Steel Grey Metallic C63!!
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Joined: Mar 2013
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From: Kamloops BC
2013 Ram 2500 Limited 2013 Harley CVO Road Glide
Jeff,
You CLEARLY are a bad influence
Appreciate the pm's/insight, and putting me in touch with Michael. Just in the order process now!!
LTH, x pipe mids, and cats coming my way for a spring delivery!!
You CLEARLY are a bad influence
Appreciate the pm's/insight, and putting me in touch with Michael. Just in the order process now!!LTH, x pipe mids, and cats coming my way for a spring delivery!!
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From: eNyCe
Steel Grey Metallic C63!!
Lolz..I'm here to share the joy with all the C63 members on the forum. You will soon understand why I'm so thrilled about my LT setup. When spring comes, you will be thanking me and have that ear to ear smile!
Let me know if you have any questions with your install.
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Joined: Mar 2013
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From: Kamloops BC
2013 Ram 2500 Limited 2013 Harley CVO Road Glide
Oh have ZERO doubt it will all be worth it..
Won't be tackling the install until April or so, when the roads clear off.
Long time to wait!! Will get ahold of EC to get my updated header tune as well… C'mon spring roads!
Won't be tackling the install until April or so, when the roads clear off.
Long time to wait!! Will get ahold of EC to get my updated header tune as well… C'mon spring roads!
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From: eNyCe
Steel Grey Metallic C63!!
I am still running the EC V5 tune. The butt dyno after the header install definitely told me that I gained quite a bit more torque. That and the constant blinking of the traction control light even at highway speeds.
I'm waiting for the weekend to try out the header tune file. I haven't been able to get on the gas for fear of running lean up top.
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From: Tempe, AZ
12 C63 Coupe
Damnit Jeff.... now i want headers! Quick question for you i didn't realize these headers incorporate 200 cell cats, so after install once you fired up the car did you get a CEL from the headers?
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From: eNyCe
Steel Grey Metallic C63!!
The 200 cell cats were optional, but I didn't have any CEL after startup. So I'm happy about not having to worry about OBDII inspections.
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From: eNyCe
Steel Grey Metallic C63!!
I haven't had a chance to make a video of a cold start for my car, but I found a video of one that Jellis had previously made. This should give you an idea of how fantastic if sounds right now.
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Joined: Apr 2010
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From: Arizona
2011 C63
Hey Glen - Take a look at the picture that I posted that shows the brace and the end piece that connects the x pipe and resonator. ARH has built a bend into that piece to allow it to clear the brace. I initially had some clunking noise because I didn't rotate that end piece enough to give it some space between the brace. I haven't heard any noticeable banging noise since that adjustment. I will probably go underneath the car in about a week or 2 to retighten everything and make some fine tuning adjustments to the pipes if it requires after the initial few weeks of heat cycling the pipes. ARH designed the pipes clear the brace and are mandrel bent into place.
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2014 C63 507 Sedan
Interesting that this pipe is designed with a bend in it for that cross bar - I wonder if there are any trade offs to having the bend there.
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From: eNyCe
Steel Grey Metallic C63!!
If there are any noticeable trade-offs, I haven't felt it. The bend is an angular bend, so there aren't any sharp disruptions in air flow. I recall some users complaining about the lack of low/mid end torque when they went with a straight pipe design.
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From: Cincinnati Area
C63 507 with BS Body; 2008 SLK 55
I do not care for the raspiness of the car in the video, but from the descriptor, he does not have the stock resonator. I have heard from several, that the stock mufflers without resonator are too loud with headers. They are designed with the stock manifolds, 4 cats and resonator in mind. Both Akrapovic and Eisenmann are a little quieter that stock mufflers apparently and a better choice when the resonator is removed.
My install is happening today - I will know first hand how it sounds by tonight! MHP headers, 200 cpi2 cats, x-pipe, stock resonator, stock mufflers.
My install is happening today - I will know first hand how it sounds by tonight! MHP headers, 200 cpi2 cats, x-pipe, stock resonator, stock mufflers.
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From: Houston
KTM 200 xcw
I would like to hear the difference in exhaust notes between mine and of those of you who are now running the ARH headers, true, I do not have the resonators along with stock mufflers, I love the sound and like it loud, coming from several cammed late model sports cars, its isn't quite as loud though (Z06 vette, 2 GTO's, G8GT) all having plenty of go fast bolt ons added, they were quite a bit louder than the C63 IMO.
My vette sounded the best with ARH headers, catless mids and the stock Ti mufflers, my most favorite sounding car to date, bar none, you just can't beat the sound of the cam humming and screaming through those beautiful Ti mufflers.
My vette sounded the best with ARH headers, catless mids and the stock Ti mufflers, my most favorite sounding car to date, bar none, you just can't beat the sound of the cam humming and screaming through those beautiful Ti mufflers.
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2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
Here is a short vid of my C63 for a comparo. I have MBH headers with catted mids and x-pipe to stock resonator and mufflers. Sorry not sure how to embed the link.
http://smg.photobucket.com/user/JMor..._2334.mp4.html
http://smg.photobucket.com/user/JMor..._2334.mp4.html
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Joined: Apr 2014
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From: Cincinnati Area
C63 507 with BS Body; 2008 SLK 55
Did my install today, including dyno runs before/after.
Results:
before (2014 C63 507, EC V5, ROW & AFE filters): 412 whp/380 lbft torque
after (with MHP headers, 200 cpi race cats, x-pipe, stock resonator and mufflers): 447 whp/420 lbft torque
Interpretation: These are Dyno Dynamics numbers (also called heartbreaker dyno). According to many comparisons I found, Dyno Dynamics read 10-15% lower than the more common Dynojets. Using a 13% increase to get to Dynojet comparable numbers, and 18% drivetrain loss, I would have these 'Dynojet comparable' numbers:
447 * 1.13 = 505 whp and 505/0.82=616 crank hp with headers
412 * 1.13 = 466 whp and 466/0.82 = 568 crank hp w/o headers.
Gain from headers: 39 whp (48 hp crank)
If those are real, then my car would be unusually strong, it seems. However, the most important number is the power increase from headers - just under 40 whp/50 crank
The car is much more alive and jumps at revs more than before. The V5 blips are more like explosions. The sound is also very different from stock. Much less deep rumble, more trumpet. A healthy dose of Ferrari thrown in on top of the AMG. More race-car. I still need to get used to that, not sure I like it. Definitely only a sleeper car at <3000rpm.
Results:
before (2014 C63 507, EC V5, ROW & AFE filters): 412 whp/380 lbft torque
after (with MHP headers, 200 cpi race cats, x-pipe, stock resonator and mufflers): 447 whp/420 lbft torque
Interpretation: These are Dyno Dynamics numbers (also called heartbreaker dyno). According to many comparisons I found, Dyno Dynamics read 10-15% lower than the more common Dynojets. Using a 13% increase to get to Dynojet comparable numbers, and 18% drivetrain loss, I would have these 'Dynojet comparable' numbers:
447 * 1.13 = 505 whp and 505/0.82=616 crank hp with headers
412 * 1.13 = 466 whp and 466/0.82 = 568 crank hp w/o headers.
Gain from headers: 39 whp (48 hp crank)
If those are real, then my car would be unusually strong, it seems. However, the most important number is the power increase from headers - just under 40 whp/50 crank
The car is much more alive and jumps at revs more than before. The V5 blips are more like explosions. The sound is also very different from stock. Much less deep rumble, more trumpet. A healthy dose of Ferrari thrown in on top of the AMG. More race-car. I still need to get used to that, not sure I like it. Definitely only a sleeper car at <3000rpm.
Last edited by Wobble64; Dec 18, 2014 at 10:01 PM.
Member
Joined: Mar 2013
Posts: 159
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From: Kamloops BC
2013 Ram 2500 Limited 2013 Harley CVO Road Glide
Wobble,
Be running that exact same setup, from tune to lth/cats etc. Real promising results! Trying to find a trusted dyne source over here on/near the left side of Canada.
Anyone with a shop to recommend in BC/AB/Washington state?
Thanks in advance!
G.
Be running that exact same setup, from tune to lth/cats etc. Real promising results! Trying to find a trusted dyne source over here on/near the left side of Canada.
Anyone with a shop to recommend in BC/AB/Washington state?
Thanks in advance!
G.
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Joined: Apr 2014
Posts: 1,001
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From: Cincinnati Area
C63 507 with BS Body; 2008 SLK 55
No they are not coated.
Ceramic coating is a mixed bag, I think. You can keep some heat away from engine bay internals, but is this really needed? On the other hand, exhaust gases stay hotter longer, which leads to higher gas speeds in the exhaust and directionally higher flow resistance. Plus, if you bang the header, the coating can crack and chip easily.
In short, I will only consider, if I see thermal issues in the engine bay.
Ceramic coating is a mixed bag, I think. You can keep some heat away from engine bay internals, but is this really needed? On the other hand, exhaust gases stay hotter longer, which leads to higher gas speeds in the exhaust and directionally higher flow resistance. Plus, if you bang the header, the coating can crack and chip easily.
In short, I will only consider, if I see thermal issues in the engine bay.
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Joined: Apr 2014
Posts: 1,001
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From: Cincinnati Area
C63 507 with BS Body; 2008 SLK 55
Video with Sound
Here is a video from my header dyno runs yesterday. Holy cr..... I did not know it really sounds like this outside!
https://www.facebook.com/turninconcepts
https://www.facebook.com/turninconcepts
Super Member
Joined: Apr 2010
Posts: 609
Likes: 38
From: Arizona
2011 C63
No they are not coated.
Ceramic coating is a mixed bag, I think. You can keep some heat away from engine bay internals, but is this really needed? On the other hand, exhaust gases stay hotter longer, which leads to higher gas speeds in the exhaust and directionally higher flow resistance. Plus, if you bang the header, the coating can crack and chip easily.
In short, I will only consider, if I see thermal issues in the engine bay.
Ceramic coating is a mixed bag, I think. You can keep some heat away from engine bay internals, but is this really needed? On the other hand, exhaust gases stay hotter longer, which leads to higher gas speeds in the exhaust and directionally higher flow resistance. Plus, if you bang the header, the coating can crack and chip easily.
In short, I will only consider, if I see thermal issues in the engine bay.
Thread Starter
MBWorld Fanatic!
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From: eNyCe
Steel Grey Metallic C63!!
Here is a video from my header dyno runs yesterday. Holy cr..... I did not know it really sounds like this outside!
https://www.facebook.com/turninconcepts
https://www.facebook.com/turninconcepts
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Joined: Jul 2014
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2010 C63 P30
Here is a video from my header dyno runs yesterday. Holy cr..... I did not know it really sounds like this outside!
https://www.facebook.com/turninconcepts
https://www.facebook.com/turninconcepts
wow that is indeed loud!
are those stock exhaust pipes? looks a little squared in the video
