Let's see what you are towing with your Defender...
#32
#33
https://wilson-collection.com/the-co...on/911r-spyder
#34
#36
#37
#38
#39
No you should be good. 4500 is nothing. I'm towing close to 8k fully loaded with my boat and it tows no problem!
#40
Looking forward to adding some pics to this thread soon!