@Heripai101 Newer 737 models have the Performance Improvement Package, fully rolled out in 2012. The P-8 has the PIP which includes the updated inlet/exhaust modulation, while the C-40 does not, meaning it's an older frame.
@heauxstess had an order on one that i had to cancel because of the silly little government shutdown
hope it keeps congress up at night that i didnt get my car