Perrin Intake

**teddy37** · 03-10-2012 02:46 PM

Hey guys i know this has probably been answered before but on perrins website they say you do not have to tune for there intakes. If you are running a stock tuned ecu that is. Is this true or safe, to not tune for there intakes. Thanks also i have a 2011 wrx

**EJ257** · 03-10-2012 02:57 PM

I'm not sure about the '08+ cars. Previous MYs required a tune (as per testes1010).

**teddy37** · 03-10-2012 03:04 PM

I looked under the 06-07 years and it doesnt say anything about not tuning like it does for 08+ so maybe its just the newer cars that dont need tuned which is kinda hard to believe.

**EJ257** · 03-10-2012 03:08 PM

Originally Posted by teddy37

I looked under the 06-07 years and it doesnt say anything about not tuning like it does for 08+ so maybe its just the newer cars that dont need tuned which is kinda hard to believe.

Do you have any way to monitor fueling?

**teddy37** · 03-10-2012 03:10 PM

as in fuel/air ratio gauge or something no. Thats why it kinda worries me

**teflon_jones** · 03-10-2012 04:57 PM

You should be perfectly fine assuming you don't over-oil the filter and cause MAF issues. Technically the older models don't require a tune to run with an intake either, but the answer to the question varies a lot in terms of the particular intake, your location (i.e. altitude), and what you use the car for/how you drive it.

**11blackwrx** · 03-10-2012 05:30 PM

from what ive heard you have to tune for an intake, im tuning mine when i put my intake on tomorrow

**rage-wrx** · 03-10-2012 05:32 PM

Perrin provides a map for their intakes if you buy the AP from them.If they say their intakes do not need a tune as such,why do they have intake specific maps?

**EJ257** · 03-10-2012 05:35 PM

Originally Posted by teflon_jones

Technically the older models don't require a tune to run with an intake either, but the answer to the question varies a lot in terms of the particular intake, your location (i.e. altitude), and what you use the car for/how you drive it.

Have you seen the MAF scaling changes that need to be made with the various stock-sized intakes on previous MYs?

**G8toWRXDave** · 03-10-2012 05:37 PM

From the Perrin website:

"PERRIN Intakes will run safely with all stock cars, running stock ECUs. No modifications are required."

"For clients with re-calibrated ECU's (Reflash or similar), or cars with aftermarket parts installed. This intake will require custom programming due to slight changes in AFR. Please contact our Tech Department for additional details."

My take on it is that if it is your only engine mod, you dont have to tune. but if you have anthing else done, you should re-tune.

If you plan to get an Accessport, get a supported intake like the Cobb SF or AEM. If you only want the sound, i think the Perrin is safe.

**Methodical4u** · 03-10-2012 07:53 PM

From what I've read .... intakes don't so much for the newer models. Id save your money for a tune or for a downpipe.

**EJ257** · 03-10-2012 08:00 PM

Originally Posted by Methodical4u

From what I've read .... intakes don't so much for the newer models. Id save your money for a tune or for a downpipe.

2011 Subaru STI stage 2 plus intake. Before/After intake test. - NASIOC

**Methodical4u** · 03-10-2012 10:50 PM

Originally Posted by EJ257

2011 Subaru STI stage 2 plus intake. Before/After intake test. - NASIOC

that's interesting.... but it makes me wonder since injectors and a fuel pump were added at the same time. I'd like to see just a base run and then just an intake with nothing else. There is and always will be a big debate on a lot of cars of what intakes really do for some of them if any.