W126 Exhaust Performance Upgrades

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Oversize

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Well I’ve already upgraded Dora’s exhaust (560SEL) since it needed to be replaced anyway. It’s a 2 x 2 1/4” system using 2 x hot dogs and a stainless HOLDEN VE SS rear muffler and no CATs (Euro engine).

The fitter had issues at the rear since I wanted to use later model stainless tips that were rather long and it didn’t leave much space for the muffler. As a result it’s a little cramped, but it does work well and sounds great. I was thinking of future options and upgrades on other cars being another 560SEL Euro and of course the 6.9s. On a 6.9 I’d probably look at a 2 x 2 1/2” system. Although a single system can perform well and sound good, I think a 3” system would be too low to the ground for a W116 or W126 V8.

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Oversize

Oversize

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Anyway I’ve started looking for a replacement for the original kidney mufflers and thought it might be possible to then delete the rear muffler and make it easier to fit the tips...

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Oversize

Oversize

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Unecessary on a 6.9 since the space for the rear muffler is far bigger than a 560SEL (plus the 6.9 centre muffler is different), here’s some aftermarket options...

VW Beetle

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B03-D595-A-0-D3-D-4025-8428-3390-CE07-A275.png

Jaguar F Type (note the muffler bi pass)

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D32289-CE-8207-4349-8817-34-E33-CDF08-DD.jpg
 
OP
Oversize

Oversize

Master
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Here’s the best lead so far...

90-B65-B29-1-B62-485-F-B8-F2-2839-C1-B9-EDEF.jpg

FDA87890-1-B47-4-D41-B21-C-73-D029981-FD4.jpg
 
OP
Oversize

Oversize

Master
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And...

22-EEF808-DC1-E-4592-9509-22-E4-D98076-B4.jpg

54-BDBA4-B-2278-4-A73-9570-4521-F38-C5049.jpg
 
OP
Oversize

Oversize

Master
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RES is in China so not much value with them:

192-F2-C69-8-E89-463-B-A8-F4-E51-A4-A1-FEF93.jpg
 
OP
Oversize

Oversize

Master
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Xcentric is in France so I bet $$$$

BDF18327-FADC-46-A3-8957-80-DAF1334-B03.jpg

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OP
Oversize

Oversize

Master
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This place looks very promising, if not expensive... I’m on leave in Bali ATM and my emails aren’t working so I’ll follow them up when I return. Oh I think their video is pretty well done so I might look into Nick Wang’s other work further ron.

https://youtu.be/fGkS5yVHSL8
 
OP
Oversize

Oversize

Master
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I think I might be onto something.... But I shudder to think how much. And if you have to ask you probably can’t afford it!! G Wagon :

https://youtu.be/VIBdyTXwAhc
 
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Oversize

Oversize

Master
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$7k ouch!! Who would pay that???
 
OP
Oversize

Oversize

Master
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Not much luck on my idea since almost no one sells single ended mufflers. I’m still thinking of ideas and searching for suppliers...
 
OP
Oversize

Oversize

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The aim was to delete the rear muffler altogether due to the lack of space available for it and the long tips. Plus a kidney muffler design lends itself to a straight through bi-pass should the need arise for a loudness button...
 

motec 6.9

Prodigal Son
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What are you trying to achieve Mark. I fitted duel 3 inch exhaust to my 454 C10 with Flowtech extractors. Exhaust system ran 1 Flowmaster Super 10 series each side. I found while I loved the sound they droned a little to much under lite throttle. So then fitted 3 inch hotdogs to each side and loved it . They removed drone from Flowmasters when added to the exhaust.
 
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OP
Oversize

Oversize

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OP
Oversize

Oversize

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Email sent.... I’ll keep you posted!
 

sean sherry

Connoisseur
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Yes.. Yes and Yes..... but I had queried the wisdom of altering the Exhausts on modern Cars. Back in the olden days freeing up exhausts by replacing Factory items , built down to a price, produced results... but today ?
All exhausts are designed to comply and are part of a whole computer controlled loop.
 
OP
Oversize

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At $2683 landed here I think my idea will go on the back burner for now! That doesn’t include installation, rear pipes or tips. Valve-tronic is extra too! All for the sake of not struggling to fit the rear muffler and tips in a short space. And I can probably live without the open (and illegal) system that valve-tronic would allow.
 
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