prob spelled removeal wrogn but o well anyways iw as wondering there are 4 bolts on the heat shield can you tell me what size they are also i have been told they are really tight any ideas on how to get them off?
Anyways, get some screwloose or some other spray that loosens up old bolts. Spray it on there and let it soak for a half hour or so, then they should come right off.
What year is your car? If it's fairly new, then you'll have problems getting the top half off since there are 2 o2 sensors. A pipe cutter will do the trick here, it's easy and simple and then you can take the top half off.
For more of a detailed explanation, do a search, I've answered a question like this before but in more detail. Good luck.