Without knowing the timing, the meter, and the K-factor they used, we don't know //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif Although I think it's a 10 or 15 second average they used, and the 135.x dB was the peak hold value.
That being said, 135 isn't that easy to acheive in every vehicle, especially if you're set up for SQ //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif ...in one like mine, I get cabin loss instead of gain //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif My highest score was a 137.1 with 300W or so, and that surprised the hell out of me.