has anyone added a straigh through muffler to a 60S?
 

I just go and installed a 60S i picked up and if you are over 3k or not warmed up its a bit too much for a daily drive even with the silencer in. I was wondering if anyone has replace the 4" exit with a 90* bend and a straight through muffler. If so how much did it quiet your car? I only need a slight so im quieter than the motorcycle on my block. I'm sure the course workers would thank me too