I was told there a pain to install what exact part is a pain to install? And do I reuse my stock clamps or they come with clamps for the shields?

 

Really? It's just a couple of hose clamps that hold them on. If you can operate a screwdriver / nut-runner, it shouldn't take you 5min to do it.

 

First two top shields I bought didn't fit right and I sent them back. Got two more and they still didn't fit right but got them to fit. They come with clamps

 

I've never used them, they want way too much money for them.

 

You can find them on ebay for ~$35/ea.