I had a message a couple of weeks ago about the 83 ramchargber I found two right side exhaust manifolds whith the heat raiser. one had the flap tooken out so it looks like the heat raiser flap is in their when you smog it but it really isn't. So I put the one that looks like the heat raiser is really in it, but its really not was that a good Idea, becouse I heard that they make your truck run hotter I dont want to run hot
I also heard if they stick shut it can mess up your motor?
I also heard if they stick shut it can mess up your motor?