I was fixing my exhaust the other day and noticed a sort of flap in the center pipe that works on a cable but were would I find the lever / switch , the cable runs from the exhaust up in to the car behind the drivers seat ???? Any 1 else have this ?????

 

sounds like the apexi butterfly used to reduce noise. Follow the cable if its a manual version it will look like an old style choke lever, if its the electronic version there will be a switch.

 

http://www.nengun.com/apexi/exhaust-control-valve

 

That's the 1 : ) cheers guys not need to find it in the car lol

 

Found it : ) just free'd it off

 

Well that's crap lol u shut it it to make it quiet and loose all boost leave it open me thinks lol

 

As that looks like a extra take the thing out put new gasket in and bolt back up problem solved.

 

thats a cool thing never seen that before, reminds me of this...
http://www.quicktimeperformance.com/QTEC/index.php
thought the QTP was a good idea as it basically means you have 2 exhausts, 1 legal, 1 crazy loud and open!

In reality aparantly they get caked with carbon & jam up and also leak gas most of the time so it sounds like an exhaust blow.