I've got an open itg foam filter on mine routed into the inner wing with alloy pipe work and my god does it let the v6 growl when you put your toe down and just a purposeful grunt under normal driving. (Matt) WalkerDnB did it to his and also said he lies the transformation it gives.
That, the decat and piper at back certainly change the sound and performance for quite little cost. Only thing I got new was the filter and pipe work so had good deals on the rest
