not HARD to install.. its hard compared to making one of your friends do it for $10, but its pretty straight foward unless you have a bunch of that heat shielding crap under your car hahaha

 

Its not hard to do, even on a vert which has less space to work(k member). If you're going to attempt it buy a can of pb blaster is hit the exhaust manifold nuts/studs with pb every day. They are going to really be on there.