Removing MAF screen and installing UrS4's MAF VS with a 471 (no A) MAF?

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Old 03-11-2004, 07:07 AM
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Default Removing MAF screen and installing UrS4's MAF VS with a 471 (no A) MAF?

Possible? Recommended? Pros/Cons?
No plans to bore the MAF, but wouldn't mind freeing things up at least a little in there.
Old 03-11-2004, 08:02 AM
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Default You'll need to wrap it 5-7 times with vinyl electrical tape...

for the Audi 90. Just wrap the electrical tape on top of itself 5-7 times around on the 'flat' section at the base of the inlet taper. When it's the right thickness it'll slide thru the airbox outlet with enough friction to hold it in place seated all the way in until the tapered section meets the outlet hole and not be able to be pushed in any further.
Old 03-11-2004, 09:40 AM
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Default Is this because the non-A MAF housing is a slightly larger bore than the "A" MAF?

Car is a 95 90, 11/94 build date.
Is the risk CEL's any greater or less when removing the screen?
Please pardon my naive questions, I'm trying...
Old 03-11-2004, 12:47 PM
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Default no it's because the outlet hole in ALL pre-96 (OBDII) airboxes is .112" larger I.D.

MAF's are identical inlet bore size for 471/471A.
Old 03-11-2004, 02:58 PM
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Default Cool, thanks for bringing a noob up to speed

So, in your experience, removing the screen and installing the VS won't cause me to throw a CEL? If so, sign me up for a snub mount and a MAF VS. I hear they package well together. ;-)

BTW, are you still working on tranny mounts?
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