Do they provide a substantial improvement when attached?

 

from what others have said, yes, they make a big difference. however, some are against their cosmetics.

i have an order for the first shipment of 04's and will be getting them.

 

I dunno if they really help or not. I live in Portland, OR where it rains all winter. I wash the G at least once every 2 weeks. I've never noticed a spray line coming out of the wheel well onto the paint either in the front or back (I have a sedan BTW). I think the guards will add a nice, custom look to the car - they even give it a more aggressive appearance in my opinion. However, since the car seems fine without them, I don't think they're needed. I'm also concerned about rubbing between the guard and the paint and the differential paint fading. If you ever want to remove them, after some time has passed), you'd have to repaint the car to make it look right.

-townsley-
2003 Brilliant Silver Premium Sedan

 

I have them on mine and they don't really help in preventing rock and rain from splashing on the bumper.

However, I do like how they look and the two tone paint.

2003.5 Brill. Silver/Willow 6MT sedan, Premium/Winter/Navigation