Some shops charge more than others for parts. Some charge more as a matter of convenience. Rarely is someone going to fickle over 10 bucks for something when you can get it right then and have it installed right then. Plus, you have to figure your not paying shipping on these parts so little higher price may be ok. Plus the vendor or shop you are dealing with may not have secured a very good pricing from the supplier. This can be due to a low volume purchasing. More buy usually equals lower pricing point.
Actually, you pay for everything in the price of goods and services. That 30 dollar part or 50 dollar rate pays for part of employee wages, insurance, building, advertising, utilities and so on and so forth.
The labor rates look to be about 90 an hour. This is what I would expect for most any shop. $50.00 to $120.00, average, an hour labor is what I have seen for a shop to charge.
This is my guess as to labor rates vs. about the time to install assuming 90 an hour.
"Labor:
Injector installed- $360 about 4 hours ( I assume the fuel rails and other fuel bits are lumped into this as you did not state a separate line)
BCS Installed- $45 about 30 min
Map Sensor Installed-$250 about 2.75 hours
Miscellaneous-$100 I guess they charge for unforeseen circumstances??
Tune- $200( reduced from $400) Reduced as an incentive and to compensate for maybe a bit higher prices on parts. This is supposed to make you feel
good and for you to want them to do the work. Labor rates can be more easily manipulated than parts as labor is
more easily manipulated than previously paid inventoried goods taking up shelf space and costing money to sit.
About $2,400 for everything.
If the price of the parts bother you, try sourcing them on the net or from one of our vendors and then taking your parts to them for install. Make sure to ask them if they will still honor their labor rates and discounts if you do this. Also, make sure that they will still honor any kind of warranty if you were to source your own parts. You may be surprised that a lot of shops will deny any claim, regardless if workmanship or faulty part, when you bring your own stuff to them.
Every shop has their own formula as to why they price the way they do but from what I have seen above, I wouldn't balk to much, if at all.
However, these are just my educated guesses. In the end, if you like them, can sleep at night with what they told you, go for it.