[hoover]

I like your cap design, but your schedule 40 pipe looks to me like electrical conduit. If so, this material bends very nice with a heat gun if you do not go to sharp a bend. Too sharp a bend will kink the material, although it does not seem to affect the strength. I used 1 1/2" plastic conduit to form a cab extension for my Silverado and covered it with abs plastic. Still evaluating the value of this mod. A large front air dam built along the same lines has shown definite gains on my truck.