There's a few nice tunes, depending on your PP needs. Check out the following tuning shops: Team Shmo, Top Performance Tuning, Praiano's Tunes, RKM Motorsports, JG's Tune Shop
Woo he listed mine. https://www.gtplanet.net/forum/showthread.php?p=5504736#post5504736 that is mine and I feel is it everything you are looking for and have edited again to be the best it can be. You may need to lower the final gear on the transmission since Monza is such a large track