Thanks bud.... you took them off because you also agree that they are just huge?
No likely because they can be removed or installed in a few minutes. You use 'em when you need 'em.
OEM cross bars are that height for a reason...the '18 uses an external sunroof that is the height of the front bar as opposed to the gen1s that had an internal sunroof only half way opened to a slot instead of a fully opened window like the gen2. Use shorter aftermarket crossbars on an '18 with a sunroof and when loaded you either can't operate the sunroof or if you forget and try to open the roof, you will damage it.
What if you don't have the sunroof?....then good luck on the noise factor. First thing I checked was if they were properly installed by the dealer - front bar is lower than the rear so that the loading surface is level when the vehicle is level and facing in the correct direction for the aerodynamic shape . In addition the tops of the bars contain and integral rubber traction surface. Also the bars are installed in fixed positions and cannot be slid forward or rearward, evidently for noise reduction and drag which is a major problem with roof racks.
Current Chevys -'16 Silverado LT;'18 Malibu LT Redline;'18 Traverse Premier Redline<br /><br />Previous Chevys:16 Malibu LT2 '17 Impala;'16 MalibuLT;'15 Camaro LS;'15 Traverse; '13,'12 and '07 Avalanche LTs; '11 Tahoe LT; '13 &'11 Malibu LTs; '08 Trailblazer;'06 Colorado WT..... Chrysler era.....'80 Citation;'75 Impala;'72 Chevelle;'69 Camaro R/T;'65 Impala SS;'62 Nova