There's a reason the Lingenfelter package is $45,000... It's because it's rediculously expensive to get inside the engine. It's labor intensive to take a C6Z apart... And despite what you think, not everyone that wants to mod it has the bank to drop tons and tons of cash into the car like that. It's not a Subaru... Pulling the motor takes a little more than the 2 hours (if that) a WRX takes.
Maybe you're willing to pay the cost of pistons and installation for your coworker's Z06.