Just wanted to add my .02 -
I installed these on Saturday and boiling in hot water worked for me. Unlike most of you, I had issues getting the accelator on as well. Boiled it for 15 minutes and it slipped right on (10 seconds max).
Then I moved on to the brake pedal. Boiled it for 15 minutes as well and while it was still difficult, after two attempts I was finally able to get it on.
Definitely worth it - They look great and was able to save $140 versus the $199 dealer price to purchase/install.