Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post

Rabble · 02-09-2013, 12:30 AM

Just a heads up for all of you who have installed drop in air filters, I was doing some head scratching trying to get the damn airbox to click back together and I couldn't quite get everything to line up. I searched in the owners manual and thought it was weird that there wasn't instructions for replacing the air filter. I assumed that if it wasn't in the manual then it was slightly more involved than a simple drop in replacement...

It turns out that if you aren't careful you could close the metal clips on top of the airbox yet not have a true seal. If you press on the top of the airbox you can look to the underside and see the two halves of the airbox separating.

There shouldn't be any bending or flexing of the sides of the airbox, everything should sit flat and flush. The plastic teeth on the sides of the airbox should not touch or be pressing against each other.

I had to take the whole airbox assembly off just to get the two halves to sit securely. This involves removing three bolts.

One bolt is on the front side of the actual airbox.
One bolt is on some plastic box thing that sticks out of the left side of the airbox.
One bolt is on a plastic arm on the rear bottom right of the airbox.

All three of these bolts are 10mm.

Once you remove the bolts you just slide the airbox assembly out of the snorkel. This gives you much more leverage to securely close the airbox and make sure there is no play in the fitment. Slide the airbox back around the foam on the snorkel and rebolt. (I'm not sure if that is the correct way to replace the snorkel, but it is on the dirty side of the air filter so at least your engine will be getting clean air regardless of the snorkel situation)

You will know that your airbox is sealed correctly because the two halves will not move or give any play. (the airbox itself will move, but the two halves will stay completely sealed)

This might be general knowledge but I was reading some people say that they just forced their aftermarket filter to fit. I want you to know that just because you forced the metal clips back onto the airbox doesn't really mean that the airbox is secure.

If there is enough interest, I can take some pictures of the process.

02-09-2013, 12:30 AM	#1
Rabble Senior Member Join Date: Nov 2011 Drives: Asphalt FR-S Location: USA Posts: 457 Thanks: 6 Thanked 110 Times in 51 Posts Mentioned: 1 Post(s)	CAUTION: Drop in Air Filter Install Just a heads up for all of you who have installed drop in air filters, I was doing some head scratching trying to get the damn airbox to click back together and I couldn't quite get everything to line up. I searched in the owners manual and thought it was weird that there wasn't instructions for replacing the air filter. I assumed that if it wasn't in the manual then it was slightly more involved than a simple drop in replacement... It turns out that if you aren't careful you could close the metal clips on top of the airbox yet not have a true seal. If you press on the top of the airbox you can look to the underside and see the two halves of the airbox separating. There shouldn't be any bending or flexing of the sides of the airbox, everything should sit flat and flush. The plastic teeth on the sides of the airbox should not touch or be pressing against each other. I had to take the whole airbox assembly off just to get the two halves to sit securely. This involves removing three bolts. One bolt is on the front side of the actual airbox. One bolt is on some plastic box thing that sticks out of the left side of the airbox. One bolt is on a plastic arm on the rear bottom right of the airbox. All three of these bolts are 10mm. Once you remove the bolts you just slide the airbox assembly out of the snorkel. This gives you much more leverage to securely close the airbox and make sure there is no play in the fitment. Slide the airbox back around the foam on the snorkel and rebolt. (I'm not sure if that is the correct way to replace the snorkel, but it is on the dirty side of the air filter so at least your engine will be getting clean air regardless of the snorkel situation) You will know that your airbox is sealed correctly because the two halves will not move or give any play. (the airbox itself will move, but the two halves will stay completely sealed) This might be general knowledge but I was reading some people say that they just forced their aftermarket filter to fit. I want you to know that just because you forced the metal clips back onto the airbox doesn't really mean that the airbox is secure. If there is enough interest, I can take some pictures of the process.