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Old 12-27-2009, 10:03 PM   #7
POWERFREAK
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Drives: 2011 2SS/RS/A6 cammed-n-whippled
Join Date: Oct 2008
Location: NY
Posts: 2,637
yeah, on a stock motor and stock tune, unless you live in a really HOT climate, no reason to do it. If you do live in a HOT climate, you should also get a tune to turn your fans on at a lower temp.

To answer the question...unbolt the thermostat housing...(located at the end of the upper radiator hose...get ready for a lot of coolant to drain out)...remove and replace. Refill radiator, purge the system, done.
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