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What is the Stock Exhaust Pipe Sizes? Downpipe and Downstream of Downpipe?

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Old 03-10-2009, 06:53 PM
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What is the Stock Exhaust Pipe Sizes? Downpipe and Downstream of Downpipe?
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Old 03-10-2009, 07:36 PM
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i think downpipe is 2.75 or 2.5 before the split and dual 2.25 to the back
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Old 03-10-2009, 08:42 PM
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Why would one upgrade from dual 2.25" to single 3" - wouldn't that be capable of less volume?
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Old 03-10-2009, 09:42 PM
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I think the stock downpipe is 2.5" just by measuring the circumference. Anyone Confirm??
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Old 03-11-2009, 12:35 AM
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Default Mind you that before the split, theres actually 3 layers of metal, inner circ. is much smaller.
I can take photos of my chopped downpipe at the split I took off of my S6 and take measurements if you really want to know.
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Old 03-11-2009, 12:37 AM
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Default You'd be surprised ;-)
110lbs vs. 35lbs is a big weight savings, turbo spools several hundred RPM sooner with little to no back pressure and the sound is indescribable. I think a video is in order of my car soon...
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Old 03-11-2009, 04:54 AM
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Hint: Audi doen't use "inches"
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Old 03-11-2009, 05:40 AM
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Default Because a Stromung sounds great and turbo response is faster.
Because we can..
also..
JP
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Old 03-11-2009, 08:46 AM
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yeahyeahyeah video please. inside and outside...long ones too
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Old 03-11-2009, 08:53 AM
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Thats interesting to know... No pics necessary... I'll trust you.
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