8th Generation Honda Civic Forum banner

981 - 990 of 990 Posts

·
Registered
Joined
·
35 Posts
Foreword: Follow this DIY at your own risk. It's not hard, but you need some dremel skillz. Is this intake going to give you 10whp? Probably not. Is it going to make your R18 sound like it has some cajones? Yes. Yes it will.

VIDEO(thanks CrazyJim):
movie

Thanks Josh!
movie

movie

Basically, you are hacking out the OEM MAF holder to force it to accept a cone filter

Required Items:
  • Phillips Head Screwdriver
  • Standard Screwdriver
  • Dremel
  • Cutoff Wheels for the Dremel (preferably the metal ones)
  • Sanding Bits for Dremel
  • 10mm Ratchet, and Extension
  • 2.5" to 3" silicon coupler
  • AEM air filter, 2.5" opening


Procedure:



image


The coupler you are going to need. Available in the "import modification" section of your local Pep-Boys or Autozone or Kragen

image


Pop off the clips holding on the airbox lid. Disconnect the MAF wire, and take off the airbox lid and remove the air filter.

image


Pop off the airbox inlet hose (blue)
Remove the two 10mm bolts holding on the box (green)
Disconnect the hose clamp (red)
At this point, you can pull out the lower part of the airbox. Use some strength and twisting, the nipple in yellow has to be forced off. You can throw this assembly somewhere, you won't need it.

image


Loosen the hose clamp on the left, so that this hose may be rotated.

Now its Dremel time:

Remove the MAF from the lid, and place it somewhere safe and clean

image

This is what you have to start with. Your first cut should be to free the general MAF holding area from the bulk of the lid.

image

your next series of cuts are going to separate the MAF tube from the rest of the bulk around it.

image


image



image

This is more or less your finished project. Make sure to trim down the ridges(Red) and the former wire clip area (green) and sand these areas down so that the coupler can make an airtight seal here.


image

Slide the coupler onto the filter, like so.


Now assemble everything. The easiest way to do it is to slide everything together in the engine bay, maneuver it so it sits properly, then tighten everything.

This is your final goal.

image


Extra Credit:

Route your cranckcase breather back to your intake.

Ideally you want to do this to reduce the chance of gunk buildup in your head.
I Mcguyver'd it out of vinyl hose and a hose barb. Spent about 5 bucks in parts. You dont have to do exactly what I did, but as long as you get some of your intake vaccum drawing from the crankcase your in the good.

image


image


image


image


image








Ever need to go back to stock?

New lid isn't expensive

image

17211-RNA-A00 COVER, AIR CLEANER $ 15.36


Worried it doesnt make power?

Makes just about the same power as an Injen CAI



Enjoy. :dance:

Testimonials:





User iterations:

image


image


image


image


image


image


image


image


image


image


image


image

I want to try this on mine but im kind of nervous i'll mess it up:bunny:
 

·
Registered
Joined
·
372 Posts
This is such a good idea. Problem is, when I visit the wreckers to try to find a stock airbox, it's usually missing or all cut up lol. I can't mutilate the one in the car because it's my daily. It's definitely the next little mod on my list though.
 
981 - 990 of 990 Posts
Top