I just did the golf tee mod and love it! It was super easy, I did it right in the advanced auto parts parking lot (good place to get the parts).
I used a 3/16 male connecter and 3/16 plug to plug the hose. I attempted to use a 3/16 plug on the nipple of the actuator but it was way too lose so I used a 1/8 plug on there and it fit perfectly. Then I just zip tied the hose out of the way. If you are observant you will notice a considerable volume change in the exhaust below 3,000 rpm. Don't expect anything different above 3,000 rpm.
Anyone debating this mod, don't hesitate to do it. The whole process took less than 5 minutes and is easily reversible (using this method).
Very happy with the results!
Let me know if anyone wants pics or video.