O/R H ???

As Eric said, it's a plug and play affair. Sometimes you have to modify the smog tube to get it to hook up but that'simple.

Good luck.
 
I used a length of heater tube with 2 hose clamps... no problems yet....

That's how I did it too. The placement of the ends of the tubes from the H's were not exactly the same, hence using hose to bridge the gap. Seems like silicone hose would work well too. Heater is cheaper.

Swapping H's is pretty easy so don't sweat trying it yourself.

Good luck.