Thread: 3.73 vs 3.91 gears in an SS A6
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Old 07-30-2019, 08:41 AM   #39
gnance2
 
Drives: 2013 Chevy Camaro 2SS
Join Date: Jul 2019
Location: 73071
Posts: 3
I just installed 3.91 in my A6. I just have bolt ons and went from 13.2 to 12.90 in the quarter. Best mod so far.
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