83958 came to me in ‘97 with Bosch rubber. The drivers side had a wing on both the wiper arm and the wiper blade. The passenger side had no wings at all. The current Bosch C2007 is a match for the passenger side blade - no wings at all. Carefully pulling the new C2007 rubber out, and then rethreading it into the driver’s side mechanism works just fine.... new rubber and still with two wings. QUESTION: Did the car originally come with a wing on the passenger side wiper blade? Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
No they didn't. I asked this question to my local indie last year when I replaced my blades and thought it was odd only the drivers side had it. He said Ferrari doesn't care if the passenger side lifts at speed and they can't see.
Paris car didn't have it and at minimum some of the monospecchio cars don't have them. So, those of us with the two mirror car can brag about having the Duespecchi Monoala version and increase the price accordingly. https://ferrari-cdn.thron.com/delivery/public/thumbnail/ferrari/9cd58818-07e9-403c-bef3-416ea98ff5ea/q076ls/std/364x205/ferrari-testarossa-1984-carou?lcid=7910afdd-af80-4c58-9b43-18dd23ffd317&v=102&dpr=263 https://p0.storage.canalblog.com/08/67/1635095/130673135_o.jpg https://ferraris-online.com/wp-content/uploads/2019/05/Front-right-view-1-108.jpg
Ago, my 1986 Testarossa did not come with any aero on the wipers either, but I do still have the original factory washer fluid in the tank as I have never used it, LOL. EDoug