Thermoquad question

And it sounds glorious at WOT.

I stuck one on a 318 and I liked the sound so much that I swapped in some 2.76s into the back, and a 2800TC, with a manual shift. Now, when I floor it in drive, I can listen to the moan for like 23 seconds, until she hits 70mph@ still at 2800 booya! Ok 23 seconds might be an exaggeration, lol.