I changed the spark plugs on sunday, have put denso iridiums IK20, bought a wench and extension from repco for $30, I removed the engine covers and cleaned the top with a cloth and then vacumed it . removed the plugs and starter coils and carefully turned the spark plugs anticlockwise to remove them, I did one at a time , took 20 min to do the whole thing the old spark plugs were in a bad state , brown on the tips and did not seem to be a point on them , as compared to the denso. did a test drive and no engine lights got on , so no misfire or anything like that. next DIY is the cabin air filter , question on that. I have seen some utube video showing the method , I removed the glove box and did not see any chamber or casing which could be removed which houses the filter as shown in the videos. there was white plastic casing and everything was bolted down , no moving parts. so either the previous owner has replaced the original parts or there is another way to get to teh filter. I tried to see if there was a way in through the engine bay near the windsheild but no luck there . does anybody know how do i get to it? thanks