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Removed cats from my w216 and welded str8 pipes

Old Jun 15, 2016 | 06:05 PM
  #1  
MB-CLS500's Avatar
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From: Tbilisi , Georgia
CL600 W216
Smile Removed cats from my w216 and welded str8 pipes

noticeable power increase but have not dynoed it yet
Attached Thumbnails Removed cats from my w216 and welded str8 pipes-13419154_499671036890417_4795794756328872652_n.jpg   Removed cats from my w216 and welded str8 pipes-13442228_499671010223753_8342134588276638928_n.jpg   Removed cats from my w216 and welded str8 pipes-13450245_499671053557082_3201024450985006409_n.jpg   Removed cats from my w216 and welded str8 pipes-13450784_499671023557085_7792830401026922079_n.jpg   Removed cats from my w216 and welded str8 pipes-13450794_499670996890421_1870634046017852650_n.jpg  

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Old Jun 16, 2016 | 02:42 PM
  #2  
ZephTheChef's Avatar
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2004 S600
Nice jig, lol. I should have done that with mine so I didn't have to tack them in place and then take everything back off.
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Old Jun 17, 2016 | 02:35 PM
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05 CL65
You guys crack me up. I cut mine out and welded in str8 pipes without removing the head pipes from the manifolds. Sure you have to weld places you can't see, but after doing exhaust for a living for 7 years I got pretty good at it. That was almost 30 years ago, but apparently I can still mig weld by sound and the shape of the glow.
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Old Jun 17, 2016 | 02:52 PM
  #4  
ZephTheChef's Avatar
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2004 S600
Originally Posted by Dr Matt
You guys crack me up. I cut mine out and welded in str8 pipes without removing the head pipes from the manifolds. Sure you have to weld places you can't see, but after doing exhaust for a living for 7 years I got pretty good at it. That was almost 30 years ago, but apparently I can still mig weld by sound and the shape of the glow.
I've done plenty of stuff in place. But as picky as I am about noise on my Benz, I didn't want to chance any leaks. Plus, I didn't really want to be doing all that cutting and welding next to all sorts of things that could easily be damaged.
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Old Aug 7, 2016 | 02:10 PM
  #5  
MB-CLS500's Avatar
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From: Tbilisi , Georgia
CL600 W216
So I dynoed my car after removing cats redline is old diagram before removing cats blue is new 537whp at the wheel 680 at flywheel 25%loss on dynodynamics . I need new ecu software for cats removal . With 19psi boost after ecu retune it will have 23psi around +30whp keep new posts. I will install ice tank meth soon. And plan to upgrade turbos at turbo dynamics and install full wider wide downpipes with full str8pipe exhaust
Attached Thumbnails Removed cats from my w216 and welded str8 pipes-20160807_214513.jpg  
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