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Old 10-28-2013, 08:38 PM   #1
Keeferton
Scooby Newbie
 
Member#: 295932
Join Date: Sep 2011
Chapter/Region: NWIC
Location: Southern Oregon
Vehicle:
2011 WRX Wagon
Dark Gray Metallic

Default 2011 WRX Intake and Exhaust upgrade tune question

So after owning my car for two years I have decided it is time to upgrade the intake and exhaust. I have decided to go with the:
1) Invidia Q300 exhaust
&
2) K&N typhoon short ram

I have heard that it is almost necessary to preform a tune if you upgrade these two pieces but my resources are limited.

I was considering getting the COBB Subaru Accessport to do a tune myself but i am very inexperienced when it comes to this. I am not looking for huge power gains or squeezing every ounce of horsepower i can out of my engine. I am just looking for reliability and a smooth powerband.

So is a tune necessary (i don't want my car to run like crap)?

If i get the exhaust only, will i still need a tune?

Any other advise outside of the unibomber manifesto?
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Old 10-28-2013, 09:07 PM   #2
Dmochowski
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Member#: 306478
Join Date: Jan 2012
Chapter/Region: South East
Location: chattanooga, TN
Vehicle:
2012 WRX limited
305whp/360tq TSM tuned

Default

Quote:
If i get the exhaust only, will i still need a tune?
no
Quote:
I have heard that it is almost necessary to preform a tune if you upgrade these two pieces
an intake REQUIRES a tune. If it is an OTS map or protune it doesnt matter. As long as the intake you choose is supported in the map notes.

Quote:
I was considering getting the COBB Subaru Accessport to do a tune myself
well that entails is downloading the appropriate tune and flashing your car, there isnt much thought to it.
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Old 10-28-2013, 09:16 PM   #3
Keeferton
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Member#: 295932
Join Date: Sep 2011
Chapter/Region: NWIC
Location: Southern Oregon
Vehicle:
2011 WRX Wagon
Dark Gray Metallic

Default

Thanks for the quick reply and your help! Looks like ill have to delay an intake considering it will cost $900 with the cobb tune port.

What about if i just want to swap the stock filter for a K&N filter? Will i need a tune? Even after cleaning my stock one and only 15k miles it seems to take a lot of abuse where i live (bug magnet) so i need to replace that.

Edit: this is assuming i will have the new exhaust on as well.
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Old 10-28-2013, 09:19 PM   #4
sc00by4life
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Location: Bothell
Default

aftermarket panel filters will not only net you almost zero benefit, but can also mess with maf scaling.
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Old 10-28-2013, 09:22 PM   #5
Keeferton
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Member#: 295932
Join Date: Sep 2011
Chapter/Region: NWIC
Location: Southern Oregon
Vehicle:
2011 WRX Wagon
Dark Gray Metallic

Default

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Originally Posted by sc00by4life View Post
aftermarket panel filters will not only net you almost zero benefit, but can also mess with maf scaling.
good to know. ill keep it stock until i replace the whole intake.
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Old 10-28-2013, 09:25 PM   #6
HinshawWRX
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Chapter/Region: MAIC
Location: Common Sense, VA
Vehicle:
2014 Porsche
GT3 (Currently on Fire)

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Keep the STOCK INTAKE unless you want some "woosh" sound to make the high school girls happy.

If you change the intake at all, or the downpipe, you need a tune. Catback? No. Axle back? Nope. Downpipe and intake.

Don't know what you're doing when it comes to tuning, get an Accessport. Have a laptop and know how to use it? Get a Tactrix cable. Don't know what that is? Google/search it.

Of course, calling Cobb or any tuner will set you straight.
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Old 10-28-2013, 09:35 PM   #7
Keeferton
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Member#: 295932
Join Date: Sep 2011
Chapter/Region: NWIC
Location: Southern Oregon
Vehicle:
2011 WRX Wagon
Dark Gray Metallic

Default

too old for high school girls so i guess the intake is out. bummer

Seriously though, from everything I have read the intake sounds like more of a downgrade than an upgrade. I don't get it? Maybe its like putting a bov that sounds like a 9mm going off on a stock wrx? super sic
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Old 10-28-2013, 09:41 PM   #8
Chrisf4i
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Member#: 330313
Join Date: Aug 2012
Chapter/Region: Tri-State
Location: Lehigh Valley, PA
Vehicle:
2012 WRX
WRB

Default

Quote:
Originally Posted by Keeferton View Post
So after owning my car for two years I have decided it is time to upgrade the intake and exhaust. I have decided to go with the:
1) Invidia Q300 exhaust
&
2) K&N typhoon short ram

I have heard that it is almost necessary to preform a tune if you upgrade these two pieces but my resources are limited.

I was considering getting the COBB Subaru Accessport to do a tune myself but i am very inexperienced when it comes to this. I am not looking for huge power gains or squeezing every ounce of horsepower i can out of my engine. I am just looking for reliability and a smooth powerband.

So is a tune necessary (i don't want my car to run like crap)?

If i get the exhaust only, will i still need a tune?

Any other advise outside of the unibomber manifesto?
* Only the COBB Tuning SF Intake and AEM Cold Air Intake are compatible with these maps. Use of an uncertified intake system while using these maps can potentially cause engine damage, regardless of how similar it may look in design to the aforementioned intake systems.

Cobb map notes
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Old 10-28-2013, 09:48 PM   #9
HinshawWRX
Medium Frank
Moderator
 
Member#: 140114
Join Date: Feb 2007
Chapter/Region: MAIC
Location: Common Sense, VA
Vehicle:
2014 Porsche
GT3 (Currently on Fire)

Default

Intakes are generally a downgrade. The stock one is fine for a lot of power.
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