I guess everybody has a different hearing and noise interpretation. I did the mod and the difference in idle and up to 3000rpm's are huge. I took my daughter shopping a couple days later, and she said "I love the sound of your car, I never noticed that before". It's definitely a different sound, nice low humming at idle and some more low frequency up to about 3krpm.
Anyway, I used a zip-tie and love it.
