Drilling Exhaust

[Christian H]

Originally Posted by jmatta

I highly recommend the bypass pipes on the muffler. I have one installed on my S and it sounds great. It sounds even better now that I've added secondary cat bypass pipes. Everyone wants to know how I get such a wonderful sound out of my car.

Do you know if the diameter of the bypass pipes are critical ?
Yours look to be about an inch or so,would larger/smaller diameter pipes give a different tone or just be louder/quieter?
I have gas and mig welding experience so this looks like quite a straightforward mod unless I'm missing something !

[jmatta]

Car's in storage so measuring is not that easy at the moment. I would think that 1" ID minimum would work, from memory.

Nice that you have the ability to do this yourself...I always rely on friends that are handy.