Install prices for popular components.

Hey guys, i was just wondering if you would know the install prices of mods and bolt ons for a 99 civic ex. I just want to make sure the shop i go to is not trying to rip me off when i get the stuff installed. If you could like make a list of stuff you've had installed that would be cool. Like exhaust, fuel, ignition, pistons, cams, flywheel, turbo or anything that would be helpfull, thanks a million.