Roush quad exhaust + Longtubes?

[v8ter]

I have the Roush single tip axleback w/hpipe and o/r longtubes,they sound very good but not enough volume for my taste, I hope you didn't believe me on that, they are really really really loud!!! Im trying to find out, with the quad Roush exhaust, how loud is the exhaust with the block off plate in place vs all open?

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