Hard to say with mine, I would expect a reduction in fuel mileage as the
van height increases and the air dam is removed. I am running a stock
airdam, bumpers & body cladding, but changed the springs from carat to
stock height. I get about 22mpg on average during a trip. 17 -18 for
combined in town driving. Probably pretty subtle changes I would expect.
Van is very stable in wind but probably more to do with proper tires,
shocks & bushings.
Jon

On 5/25/2016 9:47 AM, Neil2 wrote:
> Would someone tell me how valuable the '90 air dam is?  I'm considering
> R&Ring my OEM bumpers cladding with a GW set and wondered what difference.
> significant, the air dam removal will make in fuel mileage, noise,
> buffeting, et cetera.  Stock Nazis need not reply.
>
> Please/thanks!
>
> --
> Neil2
> '82 Diesel Westfalia (Ducky)
> '86 Vanagon/Westfalia Wannabe (SaVannah)
> '08 170" 2500 Mega Roof Dodge Sprinter (Moby)
> '90 Westfalia Subagon
> Fulltiming since August 2008
> Nunquam Pendite Divendium