On Friday I installed the Agency intake on the 15 Turbo. I already had their VR Tune Piggy Pack installed on the car.



Installation:

Pretty straight forward...you do have to remove the whole rear bumper to install the intake but it's made to come apart and go back together really easy.

I did filters on my 991s and removing the bumper was exactly the same. This video is super helpful.
https://www.youtube.com/watch?v=Rnfp...ature=youtu.be

Factory Intake - pretty restrictive design that keeps turbo noise to a minimum.




Agency Install - there's really no mistaking how the part install...just take your time and make sure everything is how you want it.








Gains - I have access to a Mustang 1100 AWD dyno so that is what I used. My gains on the intake were more than the advertised results Agency claimed which I am assuming is because I am also running a tune.

Dyno run on same day as install. Conditions were 79 degrees, 87% humidity, and 823' of elevation.
Pull 1 - 11.26whp 19.26tq over stock intake
Pull 2 - 14.13whp 21.22tq over stock intake
Pull 3 - 12.22whp 20.97tq over stock intake

My PDF file of the dyno is like 100mb for whatever reason and won't let me upload to photo bucket.

Driving Impressions - The car is noticeably louder (turbo noise) which I enjoy immensely. There seems to be a bit more of a deep end growl to the exhaust note and a tick more throttle response. I've put nearly 500 miles on it over the weekend without any hiccups or CEL. I am seeing nearly 1.8 more MPG's as well...which is a nice unintended consequence. Same driving style, route, and conditions.

All in, I am pleased with the product and seems to perform as advertised.

Notes - the intake didn't come with any instructions so I had to make a couple calls along the way to clarify some stuff.

 

Great write up thanks!

How come you didn't install the y-pipe?

 

I plan to snag it next...

 

Awesome write up!

 

Yes, thanks for taking the time to share with us.

 

The Agency Power "HAI" or Hot Air Intake... Nobody else thinks this is sketchy?

- Patrick

 

Yeah, that is exactly what I thought about it. needs some sort of shielding or else just sucking hot air right off top of motor

 

If it were a non-intercooled NA setup I'd see a valid concern. On a forced inducted intercooled setup I don't and I've seen favorable results.

I've had very similar setups on various other non-Porsche cars with the same favorable results. BMW, Audi, GT500, various diesel vehicles all without hiccups.

There was a great article I can't find at the moment that showed the increase in CFM vs the increase to inlet ambient air temp and the results made sense.

 

I believe dyno results would prove that wrong, especially on this car where the intercoolers have been shown to be much less than optimal. Just throwing more air at the motor doesn't necessarily translate to increased hp/tq, especially if that air is considerably hotter.

 

Very. I mean just why??? MAD! It is so amazing what some owner prepared them self to do to perfectly good car. Plus have you read this AP company have a rather bad name on internet so probably another scam to get money??

 

What conclusive evidence shows the intercoolers aren't adequate?

 

I must admit, Porsche owners sure do hate on people that mod. There is no difference putting intakes on this car over any other. The proof is in his dyno numbers.

 

Congrats on the gains!

 

Seems like this would have been a much cheaper (more profitable) and powerful way for the engineers to design the car. Ya know, instead of going to all the trouble to duct fresh air from outside of the engine bay. Dyno testing an intake like this with a cold motor and the bumper off and a bunch of fans blowing on it probably would cause a more favorable result. Button it all up and do some back to back runs and the story might change considerably.

- Patrick

 

To clarify:
The car had the bumper on for both base runs and with the intake. The car was also at operating temp. The conditions of the air are in the original post at the top. I certainly see your point though.

MurderedTurbo - Thank you sir.