Could use some advice on C63 mufflers install....

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Apr 21, 2015 | 02:46 PM

alihou007

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E55 Wagon

Could use some advice on C63 mufflers install....

Finally found a set. Took the wagon to my local shop and as I suspected one hanger on each C63 muffler will have to be cut. However, the E55 pipes size are 2 3/4 inches and shop said they cannot find that size. They can use 2 1/2 or 3 inches piping to the mufflers.

I do not want to go to 3 and wondering if going to 2 1/2 will make any difference?

Thanks for input.

Apr 21, 2015 | 05:55 PM

scoto

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Joined: Aug 2009

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From: Wisconsin

2005 E55, 2007 ML63, 2008 SLK, 2015 GLK350, BMW Z3, Dodge Power Wagon, Electric Smart car

you can buy 2.75" stainless pipe
http://www.ebay.com/itm/Stainless-Steel-Round-Tube-2-75-OD-16-Gauge-5-Foot-Pipe-/181084353714?hash=item2a2977f4b2&vxp=mtr
I was able to match up the C63 mufflers to my OEM E55 exhaust.

Apr 21, 2015 | 06:24 PM

alihou007

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E55 Wagon

Did you keep the OEM inlets on the C63 mufflers or were they cut for the 55 pipes.

Thanks...

Apr 21, 2015 | 06:37 PM

scoto

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Joined: Aug 2009

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From: Wisconsin

2005 E55, 2007 ML63, 2008 SLK, 2015 GLK350, BMW Z3, Dodge Power Wagon, Electric Smart car

I bought the C63 mufflers with about 12" of oem piping. I cut it off leaving 3" of pipe attached to the C63 muffler. The C63 pipe is slightly smaller in diameter. I expanded the 3" section to the size of the E55 pipe & then expanded the E55 pipe to fit over th 3" section & tig welded to look OEM.

Apr 21, 2015 | 10:43 PM

alihou007

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E55 Wagon

Thank you...I am leading towards cutting the inlets on

the mufflers and get the E55 pipes connect/weld straight to the end of the muffler. Got the mufflers with the inlets....not a great picture but you can see them on each side of mufflers.

Thanks again for your help.

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Could use some advice on C63 mufflers install....-image.jpg

Apr 22, 2015 | 03:14 AM

Boosted-AMG

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2005 E55, GMC Whipple Supercharged Quadrasteer Denali Pickup,Big Bored Hyabusa with nitrous

Quote:

Originally Posted by alihou007

Most muffler shops only carry 2.5 or 3.0 but the other guy is right you can get 2.75. To answer you question , no going down to 2.5 for that short distance won't hurt you at all . Keep in mind you have one per side so the 2.5 is plenty .You obviously wouldn't want to have 2.5 on a Supra due to only having one pipe but two 2.5's is letting out plenty of exhaust if that's the size you want to go with. I went with the 3.0 from the headers to the mufflers myself but I'm sure it didn't affect anything but maybe the sound a little.

Apr 22, 2015 | 03:50 AM

simon1966

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From: Surrey - England

E55 AMG WAGON 2004

When the exhaust shop fitted my c63 mufflers they cut the pipe tight to the actual box and welded a short section of pipe to sleeve over my original pipework and welded it all up. I guess they probably used 3" pipe to sleeve over my original pipework.

BTW - I also have a wagon and the c63 mufflers weren't long enough to be a straight fit leaving the tips way under the car. I think I was the first to fit c63 mufflers on a wagon in the UK, so no one had experienced this issue before. It's due to the rear floor being a different shape where the battery is located. My c63 mufflers came off a c63 saloon, maybe if they came off a wagon they would have been longer

You are probably aware of this, but stock e55 wagon mufflers are quite a bit longer than the saloon equivalents. The exhaust shop had to cut the tips off and extend them to suit. See pics.