ambrozy

What are the 80 small countersunk holes for on the tailpipes?

z06_tim

The perforations inside the exhaust tips will be for tuning the frequency content of the sounds that come directly form the tip.

I believe they normally help reduce the high frequencies which will tend to sound more like an air rush, rather like a vacuum cleaner. Probably helps make the deeper base tones more prevalent.

ambrozy

That sounds plausible, any back up information or links?

z06_tim

Try this: http://www.autonews.com/article/2012...-got-its-growl

ambrozy

Thanks for the link, that answers my question