Installed my DHM downpipe. Perfect fit.
A couple tips for the average Joe doing this at home is:
1) Get ratcheting wrenches. If you don't want to spend the dough on a complete set at least buy 8mm and 10mm ratcheting wrench. It will cut time down way way down.
2) Get a small led headlamp. Really helps when your laying under the car or peeking down from the top
3) Make sure you have multiple sizes of socket extensions. Some basic kits only come with 1 long one. You may need 2 long ones and a u-joint.
3) Soak bolts with PB night before, morning of, and even while you're working.
4) Make sure your downpipe comes with the necessary hardware BEFORE you strip your car down - 2 gaskets + DP to CB bolts.