air suspension replace
 

A6 Allroad 2003. 80k (yes only 80k..).
Front driver air spring leaked, and I just replaced with an after market.
Should I replace the front passenger as well, although it is not leaking?
I have the part but am hesitant to replace the working factory unit, because the fittings of the aftermarket one fits only marginally unlike the factory.

If I run the car with aftermarket on the left and factory on the right, would it cause imbalance?