> driven my 944s kinda hard and when i went to slow down i notice it was
> louder then normal got home and pop the hood and the long tube witch
> feeds in the the down pipe and comes up by the exhaust manifold and is
> caped not sure what it is by this is broken pulled it right up .. any
> one know what this is and used for ... it looks like it when in right
> by the o2 sensor if any one could help thanks ...