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Has anyone ever thought about rear window louvers? You know, like the ones that are on mustangs and trans ams. Because of the severe angle I'm thinking most people don't want to touch it. Also, at first it appears that there might not be any way to install the brackets. I'm considering it. Before I attempt it though, does anyone have any opinion on the subject? I think that it would look nice on the rear of any Aero and it would also help with keeping the inside cooler.--Boz
A louver on a sloped glass, like the old fastback Mustangs, will block rays from above with minimal obstruction of vision. On the other hand a vertical piece of glass will need louvers that stuck straight back for minimal obstruction. I don't know if anyone makes such a thing, and I don't think it will look quite as nice as on a sloped glass.
And you already have tinted side and rear glass right?
I am considering a Lund WindJammer Rear Air Deflector to help keep the rear glass clean and give it a sportier look. They are pretty inexpensive but I think painting it to match will cost as much as the spoiler. This Lund example is not necessarily what the Aero model would look like.
Your right about the rear window/spoiler being pretty much straight up and down, but it was all of the rage in the 70's remember? I personally like the look so I might give it a try. The rear Lund spoiler looks nice, but Toyota makes a spoiler for the Seina and I have measured it. It measures out better than the Lund one and takes more to the shape of the van. It also provides shade coverage because it extends past the rear of the deck and not up like the Lund. Why not a Toyota spoiler on the back? It is after all MADE in America and believe it or not in a cross comparison the Siena is 80% American and our beloved Aerostar which was assembled in the Florisant Missouri plant (St. Louis-my hometown) is right at about 68% since alot of the engines and drive train were made and pre-assembled in Mexica and Canada.
Oh yeah, I has a '76 Datsin 280Z and the wife had a '77 Datsun B210. Both had the shades. They would be a PITA when it comes to cleaning the back glass if they didn't swing up out of the way. That means drilling holes and adding hinges and latches. It's not worth it IMO.
I haven't looked at a Sienna air dam. I don't know if if follows the contours of the Aero surface it has to mount on. It doesn't mean a hill of beans to me where they come from as long as parts are cheap which they are on the Aero.