Muffler Options for T4 Header, Updated to SpinTech Muffler |
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Muffler Options for T4 Header, Updated to SpinTech Muffler |
7TPorsh |
Jul 28 2015, 04:49 PM
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#1
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7T Porsh Group: Members Posts: 2,691 Joined: 27-March 06 From: Glendale Ca Member No.: 5,782 Region Association: Southern California |
Working out installing a msds T4 header and am considering muffler options. My first choice was to attach a flowmaster to the end of the collector and add a tail pipe....header exits on the driver's side.
It is turning out there may not be enough room since the header collector and reducer put the flange out near the end of the trans. I can route the pipe and muffler across the back and exit the passenger's side but then I need to change my valance. I think curving the pipe back to the driver's side will be tight; and hard to find a shop to spend the time. I remember seeing some kind of 911 muffler, banana type, that had the inlet and exit on the same side. Was that a custom job? Are they effective? Has anyone done this setup? How do you mount the muffler? |
Dave_Darling |
Sep 14 2015, 04:43 PM
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#2
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
If it's feasible, I would suggest supporting the muffler off the end of the transmission, the way the factory did it. The whole drivetrain can move relative to the body. If you've got a hard mount from the muffler to the body, that can put stress on the headers or the various joints in the system. If the system can handle that, it's cool. But if the joints are solid, that's not so good.
If you mount to the transmission, the mounting should keep its position relative to the exhaust ports pretty well. Much less flexing is needed that way. --DD |
7TPorsh |
Sep 15 2015, 09:24 AM
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#3
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7T Porsh Group: Members Posts: 2,691 Joined: 27-March 06 From: Glendale Ca Member No.: 5,782 Region Association: Southern California |
If it's feasible, I would suggest supporting the muffler off the end of the transmission, the way the factory did it. The whole drivetrain can move relative to the body. If you've got a hard mount from the muffler to the body, that can put stress on the headers or the various joints in the system. If the system can handle that, it's cool. But if the joints are solid, that's not so good. If you mount to the transmission, the mounting should keep its position relative to the exhaust ports pretty well. Much less flexing is needed that way. --DD Thanks Dave, you are exactly correct. We cut some of the stock mount arm off and welded the bracket to the back of the muffler on one side and the pipe on the other. So yes supported entirely by the drive-train; no body mounts at all. (IMG:style_emoticons/default/smile.gif) |
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