It does help to lower your tire pressure but not to the point where it will endanger your high speeds at the top end. I lower my street tires to 20 PSI and have been fine. But I also have a 40 tire rather than the 45 stock SVT tire. My tire is a harder tire vs the 45. for sure stock air pressure will not help launch.
New toy, GT35R turbo 350z....Sorry SVTF