Here's a couple of pics that I took while I installed it just to give you an idea of what you're getting into if you DIY it. Keep in mind I followed the instructions provided **to the letter** , measured several times over and made plenty of tweaks to the templates until they were spot on. Measure twice cut one? nope, measure 500 times, centerpunch correctly and drill

Oh yeah, and drill stops are a must if you dont want to risk damaging anything
setting the templates
after centerpunch
ready to drill
and 'dry' fit after drilling
The instructions
http://www.trdsparks.com/install/PT921-52081-XXinst.pdf were very easy to follow and the templates werent plain ol paper, more like a printed mylar precut sheet. Most difficult part of the install was getting the templates set right, after that it's pretty much bolt/stick on