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I_M_Legend I know it seems daunting and there are more than a couple of threads out there that say get a 22mm box wrench with a flexible head and it isn't too bad. While that is true the one time I did it that way I found myself using more swear words than brain cells. I found a smarter solution that I think is 1000x easier...
For the Left side yes the intake snorkel (or whatever you have there) has to come out, but that's a couple of bolts and it comes right out.
If you want to do this don't go buy the 22mm wrench. Instead go buy an 1/8' flat head cabinet screwdriver with an 8" or 10" shank like this:
Then you'll reach into the abyss with one hand and find the star/flower nut, then use your other hand to feed in the screwdriver and use your hand that's in there to place the tip into the groove of the nut and hold it in place. For the Left side you want the tip in a bottom-ish groove:
With the screwdriver in place grab a wrench or a small hammer or something and tap the handle of the screwdriver with a bit of force. This will be enough to break the nut loose then you just use your hand to finish unscrewing it. Repeat for the other nuts.
For the Right side vent you'll want the blade into a top-ish groove:
then the side vents just pull right out of the rear quarter panels and the black plastic pieces come off with two regular screws and two post screws that have a slit in the post, just use a flat head to take those out.