This issue dates way back on TC/TCS Europas. It is worse if you have a higher output engine. When I did my upgrade back around 1985, I was aware of it, and took preemptive steps by welding an additional thick plate on the back side that goes from tip end, across the bend, and partially in towards the engine side on both of mine. Decades later, I've never had any issues running close to 200hp. If you want to copy what I did, see the attached fresh photo form an hour ago of my left hand one. (Note: the small image on my computer appears to be rotated to the right 90°, but if I click on it to enlarge, it is right side up)