SD, I finally drove my car after I did the mod (I made the holes a little bigger than I wanted ) and I think it sounds really good. I drove to work in the morning with the top up and home with it down(about 70 miles each way). It's not as noticable with the top up but when it's down you can hear it up to about 3k rpms. I am seriously thinking of going a little bigger on the holes, the exhaust sounds like music to my ears. I have always liked a good sounding exhaust, which is why both my Harley's have after market pipes.