Kinda new I guess. I've been on LS1 tech for a while when had an 06 Silver Impala SS. Well now I'm about to get ahold of a 99 Silverado RCSB with 26000 miles. From the factory with red paint, 3.73 gears, limited slip diff. Truck is in amazing condition, has been in garage for last 12 years, never seen winter. Plan on doing some some sort of tuning, exhaust, intake then maybe fans... I still have the TBSS.