Exhaust Woosh

[Ronzola]

I bought my truck last week. The previous owner installed a 4in turbo back(looks like) straight pipe exhaust system. Its not too loud on the road but I get an annoying woosh noise at idle and high idle. I was wondering if you guys had any input on a 4in muffler or resonator I could get to absorb some of that noise.

[Joel]

Thats probably the ebpv. If you want you can just unplug the wire and it will stop