Hi all, I have a 2012 that I bought new. I have just ordered a Beaudesert Exhaust sysen fron the local exhaust place here in the Alice. I have been trying to find out if I will need a dawes valve. I have already fitted a boost/EGT gauge (Redarc)and the exhaust guys says that Beaudesert will fit the 1/8 NPT bung that my gauge needs. I guess that I should mention that I also have a HPD intercooler and steel inter cooler pipes.

What have others noticed? Is the dawes valve a must do?

Cheers, Brian.