: under engine covers 2011 sts

07-13-11, 09:51 PM
Does anyone know if these two cover are necessary for the proper operation of the vehicle. I changed my oil and had to remove these in order to get to the drain plug. Would like to avoid this removal in the future if these ar not important. If they are what is the best and fastest method for removal and reinstall.


07-14-11, 03:26 PM
I have not personally seen these covers, however, in general the purpose of such covers is to improve aerodynamics, which will improve NVH as well as fuel economy. They may also aid in routing air for cooling.

I'd leave them on.

07-15-11, 08:30 AM
Thanks for the tip I understand the purpose and will take your suggestion to leave them in place

Thanks again,