The gray top tubes on my 2004 RXP disintegrated from the sun. I was going to replace them with the new 2007 black top tubes. The dealer was going to charge me $16 a piece and they are on backorder for 4 weeks. Instead of waiting I stopped by my local electronics supply store and bought 1 ½” black flexible split loom. It looks just like the stock ribbed plastic hose except it is split. I used a few dabs of silicone to secure it in place. looks great and at a $1.75 per foot (you need 2 x 16” pieces) this was substantially less expensive. I don’t know how it will hold in the sun this summer but the stock tubes didn't hold up that well and at that price I can replace it numerous times and still be better off.