My used APS 65mm CAI and my rejuvenation write up

sirwilliam · 12-13-2007, 09:36 AM

Quote:

Originally Posted by La Mer

******Warning: The RU-3130 K&N filter and APS CAI will NOT fit on an 06/07 STI.******

I just went through this last night. Save yourself the trouble. The OD of the K&N filter is TOO big.

After many months contemplating setups and deciding what route I want to go w/ my intake, I came across a used APS 65mm CAI. I got it used from a vendor. I got everything and it definitely shows it was used. Here are some pics showing the initial condition of the CAI:

I first wanted to make sure I had all the parts so I was informed of this link: APS 65mm CAI Info Page

I decided that the filter was a little too used for me so I measured the K&N filter that came w/ the APS CAI and then went to the K&N website to find a replacement filter. It was found in the universal cone filter section.

Here is the link to the replacement filter: LINKY

And some pics of the new RU-3130 K&N filter box (b/c who doesn’t like pics!):

Here is a pic of the new filter next to the old used filter (exact match!!!

):

While I was on the K&N site page for the RU-3130, I noticed that at the bottom there were other links to filters. Turns out there are different pre-filters (aka prechargers) you can get to go over the K&N filter to increase time between cleanings. I ended up getting a black and a blue pre-filter (mesh type vs. the foam). FYI, the pre-filters only restrict air flow by 2%.

Here is a link to the black pre-filter: LINKY

Here is a link of the blue pre-filter: LINKY

The blue was back ordered so I only have pics of the black prefilter installed:

Muffnbluff · 12-13-2007, 09:53 AM

Yeah, it's damn near impossible to not booger those things up when installing/uninstalling them. I've never heard of those pre-filters, that's kind of interesting.

sirwilliam · 12-13-2007, 10:57 AM

Quote:

Originally Posted by Muffnbluff

Yeah, it's damn near impossible to not booger those things up when installing/uninstalling them. I've never heard of those pre-filters, that's kind of interesting.

Yes, there are two varieties of pre-filters: Mesh (like I have above) and Foam. The mesh has an elastic band at the bottom to hold it on whereas the foam only wraps around and attaches using velcro.

gt500 · 12-13-2007, 11:21 AM

so how do you like it?

sirwilliam · 12-13-2007, 11:48 AM

Quote:

Originally Posted by gt500

so how do you like it?

So far I like it (build quality and design is good) but it hasn't been installed yet.

These pics were taken last night before I hit the hay. I have to repaint the intake blue (to match my ride) first before I install it. Hopefully, I can get that done before the new year.

WolfPlayer · 12-13-2007, 01:03 PM

Welcome to my report from a couple years ago

t

La Mer · 12-13-2007, 01:07 PM

Nice!!! I've never seen the precharger. I'm going to order one now.

sirwilliam · 12-13-2007, 01:21 PM

Quote:

Originally Posted by WolfPlayer

Welcome to my report from a couple years ago

t

Hmm, never saw that report...but it must be a good one.

Good2Go · 12-15-2007, 10:51 AM

FYI... Amazon.com has the filter for $26 and the pre-filter for $16 with free shipping over $25 spent.

boost3d05 · 12-15-2007, 12:53 PM

i have that intake, i love it w/ the protune....its loud and awesome....i cant wait to see how the blue turns out....take your time!

but hurry up w/ the pics! haha

WolfPlayer · 12-15-2007, 03:18 PM

Quote:

Originally Posted by Good2Go

FYI... Amazon.com has the filter for $26 and the pre-filter for $16 with free shipping over $25 spent.

Thanks for pointing this out. I just purchased a second one. I like the idea of having a spare on-hand to swap out without worrying about cleaning and drying it on the same day. Can't beat free shipping!

t

jutes85 · 12-15-2007, 10:23 PM

Sweet, I need to change my filter and I was about to ask what part number to get.

Thanks.

TheLimitedProject · 12-15-2007, 11:11 PM

Does anyone know if the filters above are the same for the 65mm and the 70mm APS intakes?

DragonXero13 · 12-16-2007, 08:29 AM

Thanks for writing this up!

Skter505 · 12-16-2007, 08:56 AM

The pre-filters are generally used for desert/off road guys to keep the big chunks of mud/dirt out of the real filter so you can easily pull it off and clean it, rather than doing the whole washing/drying/oiling of the normal filter. Since the APS puts the filter in the fender, its not so easy just to pull off, refresh and put back on. I dont think it will give longer service intervals for non "dirt" environments...maybe..let us know.

12-13-2007, 09:53 AM	#2
Muffnbluff DOMINATOR Car: 05 STi OBP Fav Mod: Strut Clunk Location: STL Posts: 5,611 Join Date: May 2005 Trader Rating: (5)	Re: My used APS 65mm CAI and my rejuvenation write up Yeah, it's damn near impossible to not booger those things up when installing/uninstalling them. I've never heard of those pre-filters, that's kind of interesting.

12-13-2007, 11:21 AM	#4
gt500 STI Driver Car: 06 Subaru WRX Limite Location: Bergen County, NJ Posts: 296 Join Date: Apr 2006 Trader Rating: (1)	Re: My used APS 65mm CAI and my rejuvenation write up so how do you like it?

12-13-2007, 01:03 PM	#6
WolfPlayer Moderator & ECU Tech Car: 05 CGM STI Fav Mod: mo boostaz Location: Fredneck, MD Posts: 3,646 Join Date: Jun 2004 Trader Rating: (6)	Re: My used APS 65mm CAI and my rejuvenation write up Welcome to my report from a couple years ago t

12-13-2007, 01:07 PM	#7
La Mer NIИja Car: 2006 STI (SGM) Location: US - Southern California Posts: 38,192 Join Date: Jan 2006 Trader Rating: (5)	Re: My used APS 65mm CAI and my rejuvenation write up Nice!!! I've never seen the precharger. I'm going to order one now. Last edited by La Mer : 12-13-2007 at 01:12 PM.

12-15-2007, 10:51 AM	#9
Good2Go Silver Member Car: 04 STi Fav Mod: Driver weight reduction Posts: 119 Join Date: Oct 2005 Trader Rating: (4)	Re: My used APS 65mm CAI and my rejuvenation write up FYI... Amazon.com has the filter for $26 and the pre-filter for $16 with free shipping over $25 spent.

12-15-2007, 12:53 PM	#10
boost3d05 Professional STI Driver Car: o5 WRB STi Fav Mod: Protune!!! {Factory Freak} Location: collegeville, pa Posts: 433 Join Date: Apr 2006 Trader Rating: (1)	Re: My used APS 65mm CAI and my rejuvenation write up i have that intake, i love it w/ the protune....its loud and awesome....i cant wait to see how the blue turns out....take your time! but hurry up w/ the pics! haha

12-15-2007, 10:23 PM	#12
jutes85 Silver Member Car: 2006 OBP STi Fav Mod: DOM3 Paperweight Location: Alberta Posts: 1,390 Join Date: Sep 2006 Trader Rating: (7)	Re: My used APS 65mm CAI and my rejuvenation write up Sweet, I need to change my filter and I was about to ask what part number to get. Thanks.

12-15-2007, 11:11 PM	#13
TheLimitedProject Spec C Club Car: 07 STI LTD/08 STI Fav Mod: APS/Crawford/Cosworth/Aquamist Location: E-town, AB Posts: 2,286 Join Date: Apr 2005 Trader Rating: (5)	Re: My used APS 65mm CAI and my rejuvenation write up Does anyone know if the filters above are the same for the 65mm and the 70mm APS intakes?

12-16-2007, 08:29 AM	#14
DragonXero13 Spec C Club Car: 06 STI Location: Washington Posts: 1,245 Join Date: Nov 2005 Trader Rating: (2)	Re: My used APS 65mm CAI and my rejuvenation write up Thanks for writing this up!

12-16-2007, 08:56 AM	#15
Skter505 Amateur STI Driver Car: 07 STi, Ducati 1098 Location: San Diego Posts: 38 Join Date: Jul 2007 Trader Rating: (0)	Re: My used APS 65mm CAI and my rejuvenation write up The pre-filters are generally used for desert/off road guys to keep the big chunks of mud/dirt out of the real filter so you can easily pull it off and clean it, rather than doing the whole washing/drying/oiling of the normal filter. Since the APS puts the filter in the fender, its not so easy just to pull off, refresh and put back on. I dont think it will give longer service intervals for non "dirt" environments...maybe..let us know. This ad is not endorsed by this member. Please register or login to hide this ad.