I wanted to get an oil pressure gauge and water temp gauge but i was wonderin how hard are they to put in? is it gonna take a long time or what? I want to put them on the A pillar.

 

The mechanical guages are chearper but a little more difficult to install, the electronic guages are easier and more expensive. Some also say they are not as accurate. These guages aren't hard at all to put in. The oil line going to the block is a little tricky to get to in some cars and you will need a T and a BSTP male to 1/8 NTP adapter.