Here's a pic. Yeah, I admit to being anal about filtration. All my cars have coolant, PS, tranny, and bypass oil filters on them.
There is stuff in every cooling system, especially if one uses silicated coolant. I don't but nevertheless filter what crap gets generated out. Junk can come from cavitation erosion, electrolysis, precipitation of the salts used in a coolants' additive package, ect. Better it goes in a filter than circulate through my heater core, radiator, and water pump seal. The filter is mounted where the igniter used to be. Being fed by the TB and ICS lines makes it a side stream filter. The igniter was relocated to the brake proportioning valve. If the cruise control has been removed the filter also fits well there.