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Old 01-31-2006, 02:10 AM   #1
GREGS2point5
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Default 04 2.5RS has what diameter exhaust?

What is the inside and outside diameter of the Stock Exhaust

Hopefully someone knows off the top of their head
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Old 01-31-2006, 08:35 AM   #2
jeisen
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1.875" inside i believe.
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Old 01-31-2006, 02:13 PM   #3
GREGS2point5
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what about outside diameter? thats a little more important...
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Old 01-31-2006, 02:41 PM   #4
Handsdown
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it's pretty close to 2" and it's a cast pipe.
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Old 02-01-2006, 01:45 PM   #5
Bootleg
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whoa, i could have sworn that the stock piping size was 1.75". 2" is a bit big for a stock exhaust i would think but i guess i could be wrong.

hold a 2.25" stromung up beisde the stock pipe and it is bigger than just .25" bigger than stock for sure.
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