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Old 01-08-2010, 08:17 AM   #1
jpjester
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Default Perrin Cold Air Intake Install

Hey All,
I got the Perrin Cold Air Intake Sytem in today and will be installing it tomorrow afternoon on my 2009 Subaru WRX. I wanted to know if anyone else has installed one on the newer models and could give me any fair warning on hick-ups to look out for with the install. Is there anything you noticed that wasn't in the install instructions that you found needed to be done or added or what not. I am trying to cut down on any frustrations that may arrise.

Thanks,
Patrick
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Old 01-08-2010, 10:06 AM   #2
Anderc725
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I just installed the Perrin CIA on my 09 sti. The install guide does justice but i'd recommend going to the perrin site and printing out the color version of the instructions. On the new intake make sure the MAF port is facing to the FRONT of your car. Take off everything stock from the intake to the turbo inlet hose. The hardest parts for me was getting the silicone coupler onto the turbo inlet hose, and alining the bracket brace to the new piping ( you will know what im saying when you see it.) Also after the installation is complete, do not plug your battery back in yet, first try to start your car (which it won't), then after you do that turn your key to the second stop but DO NOT start the car, then turn the back, after that start you'r car. If you do it in that order you should not get and warning lights! Be sure to really nail it the next time you drive, you will be surprised by the sound! I know I was!
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Old 01-08-2010, 10:26 AM   #3
Subarudave09
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I did this install for a friend. Colored instructions is a +1. The hardest part for me was the turbo couple like what is being said above me. You can run the stock tune but we got his tuned. or if you have a AP that works also
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Old 01-08-2010, 10:55 AM   #4
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The Intakes on the newer 3g wrx/sti's is obviously a heated topic but does anyone have the Air to fuel numbers for a wrx running the with a intake with a stock tune and also with a o/s tune
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Old 01-08-2010, 11:23 AM   #5
Smdavis27
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not for the perrin intake HKS.
Only group to actually record data out there right now from my knowledge is the car and driver rag? (pretty sure its car and driver)
you bought a 20K+ car.
are you willing to risk that on a 200 dollar intake? Tune it, if not for performance, do it for safety.
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Old 01-08-2010, 11:25 AM   #6
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14.7 if memory recalls. anyway 14.7 means 14.7 parts air to 1 part fuel. 10.2 would be 10.2 parts fuel to 1 part air, resulting in a more rich a/f ratio the 10.2 is at WOT
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Old 01-08-2010, 11:58 AM   #7
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Quote:
Originally Posted by Subarudave09 View Post
14.7 if memory recalls. anyway 14.7 means 14.7 parts air to 1 part fuel. 10.2 would be 10.2 parts AIR to 1 part FUEL, resulting in a more rich a/f ratio the 10.2 is at WOT
Fixed
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Old 01-08-2010, 12:55 PM   #8
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Wipe off ALL the excessive oil on the rubber pieces of the filter. If you dont, you wont be able to tighten it properly.
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Old 01-08-2010, 01:19 PM   #9
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Quote:
Originally Posted by Subarudave09 View Post
I did this install for a friend. Colored instructions is a +1. The hardest part for me was the turbo couple like what is being said above me. You can run the stock tune but we got his tuned. or if you have a AP that works also
Would you guys recommend not putting the entire intake together first then installing it. But instead install it piece by piece as you go to make the install easier. Especially with the Turbo Inlet Hose?
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Old 01-08-2010, 01:20 PM   #10
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Quote:
Originally Posted by Anderc725 View Post
I just installed the Perrin CIA on my 09 sti. The install guide does justice but i'd recommend going to the perrin site and printing out the color version of the instructions. On the new intake make sure the MAF port is facing to the FRONT of your car. Take off everything stock from the intake to the turbo inlet hose. The hardest parts for me was getting the silicone coupler onto the turbo inlet hose, and alining the bracket brace to the new piping ( you will know what im saying when you see it.) Also after the installation is complete, do not plug your battery back in yet, first try to start your car (which it won't), then after you do that turn your key to the second stop but DO NOT start the car, then turn the back, after that start you'r car. If you do it in that order you should not get and warning lights! Be sure to really nail it the next time you drive, you will be surprised by the sound! I know I was!
Thanks for the starting recommendations. So have the battery unplug when installing it, install it then try to start your car (which it won't), then after you do that turn your key to the second stop but DO NOT start the car, then turn the back, after that start you'r car. right?
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Old 01-08-2010, 01:21 PM   #11
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Quote:
Originally Posted by ketchupfreak View Post
Wipe off ALL the excessive oil on the rubber pieces of the filter. If you dont, you wont be able to tighten it properly.
Everything had a thin oily layer on it, i will wipe things down before install, thanks.
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Old 01-08-2010, 01:22 PM   #12
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Quote:
Originally Posted by Subarudave09 View Post
I did this install for a friend. Colored instructions is a +1. The hardest part for me was the turbo couple like what is being said above me. You can run the stock tune but we got his tuned. or if you have a AP that works also
I will be running this Perrin CAI on the stock tune for a little while. As Perrin had told me that a tune is not required to run this intake. Yet, I will be purchasing the Perrin Accessport with a map loaded on it specifically for a stock 09 with just the intake down the road.
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Old 01-08-2010, 01:57 PM   #13
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Quote:
Originally Posted by jpjester View Post
I will be running this Perrin CAI on the stock tune for a little while. As Perrin had told me that a tune is not required to run this intake.
And that's a lie. Their intakes do skew MAF readings. You do need a tune to run it.
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Old 01-08-2010, 03:05 PM   #14
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Quote:
Originally Posted by Byzantium View Post
And that's a lie. Their intakes do skew MAF readings. You do need a tune to run it.
Well any Aftermarket intake will Skew the MAF Readings regardless, most likly causing the car to run lean. YET, it will not throw a light.
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Old 01-08-2010, 03:20 PM   #15
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Quote:
Originally Posted by jpjester View Post
Well any Aftermarket intake will Skew the MAF Readings regardless, most likly causing the car to run lean. YET, it will not throw a light.
You're playing semantics. I would not have said anything if I didn't mean that it messed up readings enough to require a retune. A CEL, or a lack of one at least, is not an indicator of anything. Back in the day my old 2002 era AEM intake never threw a CEL. Neither did my 70mm APS intake when I removed my engine management for a month or so without replacing it.
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Old 01-08-2010, 05:59 PM   #16
themicrohawk
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Quote:
Originally Posted by Byzantium View Post
And that's a lie. Their intakes do skew MAF readings. You do need a tune to run it.
I'll take Perrin's word over yours unless you can PROVE otherwise.

As for wiping down the oil, that is a good idea. When I would tighten my filter onto the MAF piping it continued to pop off. Very annoying. I had to really scrub it down around the fitting for it to stay on.

I would recommend assembling the filter to the MAF hosing before installing it.

Don't overtighten the clamps around the MAF piping, it can damage it. Keep them snug.
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Old 01-08-2010, 06:06 PM   #17
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Quote:
Originally Posted by themicrohawk View Post
I'll take Perrin's word over yours unless you can PROVE otherwise.
So you believe AEM's claim of 30 hp gained on a stock RSX with a cold air intake just because that's what the manufacturer claims? Or ERZ's claims that they actually use T304 stainless steel?

How about the word of somebody who has tuned 300 cars?

http://forums.nasioc.com/forums/show...61&postcount=7

http://www.clubwrx.net/forums/2533098-post12.html

That and the fact that Perrin's filters are rubbish and should be tossed into the trash upon reciept and replaced with something better. K&N and Green make good replacements.
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Old 01-08-2010, 06:42 PM   #18
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Quote:
Originally Posted by Byzantium View Post
So you believe AEM's claim of 30 hp gained on a stock RSX with a cold air intake just because that's what the manufacturer claims? Or ERZ's claims that they actually use T304 stainless steel?

How about the word of somebody who has tuned 300 cars?

http://forums.nasioc.com/forums/show...61&postcount=7

http://www.clubwrx.net/forums/2533098-post12.html

That and the fact that Perrin's filters are rubbish and should be tossed into the trash upon reciept and replaced with something better. K&N and Green make good replacements.
Easy, son. First off, Perrin claims that horsepower gains vary based on tune, mods, and vehicle. I fail to see where they guarantee a specific horsepower gain. Plus, we are talking about the vehicle AFR. Sorry you missed that.

I'll be honest, I'm not going to click those links and waste my time. I have better things to do right now. Maybe I'll come back to this.
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Old 01-08-2010, 06:50 PM   #19
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Quote:
Originally Posted by themicrohawk View Post
Plus, we are talking about the vehicle AFR. Sorry you missed that.
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Old 01-08-2010, 06:54 PM   #20
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Quote:
Originally Posted by Byzantium View Post


MAF CEL codes, my bad. (It will help me sleep better by pointing out that the AFR is related).

Ok, back on topic... wipe the oil off the fittings.
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Old 01-08-2010, 07:14 PM   #21
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Hardest part was getting the stoopid thing to fit over the turbo inlet.
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Old 01-08-2010, 07:33 PM   #22
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Response from PERRIN:

Quote:
Tyler,

It's true that you can install our intake and use the stock tune. We designed it this way so customers could drive with our intake and not need a special tune. But if you do get a custom tune, you will have to use one that is made for our intake. You can't use an off the shelf COBB map with our intake.

I have a lot of customers that have our intake on their 08+ cars with no problems whatsoever. The people that are telling you that you need a tune probably don't have our intake, and just speculating, since that's the case with a lot of our competitor intakes.
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Old 01-08-2010, 07:44 PM   #23
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lol. I showed someone with real experience, which is a bit more than "speculating".

And actually, I do have a Perrin intake, but not the one the OP has.

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Old 01-08-2010, 08:54 PM   #24
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Quote:
Originally Posted by jpjester View Post
Thanks for the starting recommendations. So have the battery unplug when installing it, install it then try to start your car (which it won't), then after you do that turn your key to the second stop but DO NOT start the car, then turn the back, after that start you'r car. right?
Yep you got it! Thats what I did. And I did not tune mine and its run just fine, the reason i bought the perrin CIA was the fact that you did not need to tune it.
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Old 01-08-2010, 09:56 PM   #25
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Quote:
Originally Posted by Anderc725 View Post
Yep you got it! Thats what I did. And I did not tune mine and its run just fine, the reason i bought the perrin CIA was the fact that you did not need to tune it.
Thats why I am buying it right now, plus they make a solid product and I plan to take full advantage of it once I get the Perrin Accessport with the Perrin CAI Map. I will let you guys know how it goes, I will be installing this Sunday morning. Following this:

1.Unplug the Battery
2.Remove the Stock Intake System
3.Wipe down all Perrin Cold Air Intake Parts to remove oil
4.Piece together the Cold Air Intake, without Turbo Inlet Coupler
5.Install coupler that connects the Turbo Inlet Hose to the cold Air Intake.
6.Install the Intake
7.Make sure the MAF Sensor is not overly tightened in the new CAI
8.Make sure the MAF is rotated Facing towards the front of the car.
9.Tighten all clamps.
10.Try to start the car (which it won't)
11.Then after I do that I will turn the key to the second stop but DO NOT start the car, then turn the back.
12.Plug in the Battery.
13.Start you'r car
14. Take her for a test drive and go WOT!

Am i missing anything?
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