Much needed. I bought my 08 GT500 used in 2011. I didnt change it till January 27 2020 bc I only drive it about 10x a year. Yes the original was long overdue and filthy. The Bosch was a direct replacement of all 10 minutes. The side framing of the Bosch seemed to be a little less stiffer than the OEM, but nothing to complain about. Perfect fitment good quality. All in all 5 stars
Ford recommends replacing these every 5,000 miles, which is probably excessive. Install is a bit awkward, as you have to remove the plastic panel at the firewall / windshield, it's held in with plastic push pins, which want to deform when you remove them or try to reinstall them. It's surprising how much debris accumulates there! So it's a good opportunity to clean out that area and the drains.