I received the Agency Power air intake system for the 996tt. Just wanted to post my review about it. First off, the directions are VERY straight forward. There were literally 2 or 3 screws to remove from the OEM box, and MAF sensor. The tricky thing I noticed was actually getting the stock air box out of the car, you kind of have to turn it counter clock wise, and wiggle it out slowly…. (Installation Instructions are here)
The install on the new intake was very straight forward.. I’m not a very “mechanically inclined” person, so I thought I was going to have issues, but I had NONE. You have to be SUPER careful when removing the MAF sensor, as it sits right under one of the intake tubes and there’s not much room under there. Lucky for me I have long thin fingers lol. I first installed the tube that goes into the air filter, and used the supplied clamps to get it nice and snug. You then have to kind of slide the tube into the manifold thing (forgot what it’s called) and wiggle it in there. I think it would have been easier if I would have disconnected the intake tube that goes from the intercooler into the manifold, but I was too lazy.
The next step was installing the silicone hose to the 2nd box, and tightening that down with the supplied fasteners. Once all that was done, I CAREFULLY put back the MAF into the intake system and I was good to go. All in all, it took about 40 minutes to install the system.
I wasn’t expecting to feel a difference right away, but I instantly HEARD a difference when starting the car. The supplied K&N filter definitely takes in more air than the stock filter, and that is obvious from the sound. I let the car idle for about 10 minutes, and then went off.
A short burst of the throttle, and i noticed that the throttle response is much better. The car didn’t feel more powerful in 1st and 2nd, but it felt that it was more responsive. After about 100 miles of city driving, I decided to take the car on the highway and see if i would notice a difference there… I DEFINATELY noticed a difference when redlining the higher gears. With the OEM box, it felt as if the car would kind of die out at 6000 rpm, but with the new system, it feels that the car is getting more COOL air and therefore pulls harder. My gas mileage is SLIGHTLY better than with the OEM box… With the OEM box, I got 196 miles in city driving. With the Agency Power intake I got 206, and I probably drove the car a little bit harder with the Agency Power system too. All in all I’m happy with the intake. The car sounds better during acceleration, and throttle response is definitely dramatically improved. As far as horsepower numbers, I’m still waiting to get the car dyno’d, as I have a slipping clutch at the moment, but I wouldn’t be surprised if there was a noticeable increase in torque.
After 500 miles of driving, I decided just for curiosity to open up the intake box to see how the filter was looking, and it still looked brand new. No black spots anywhere. Next on the list are the Agency Power intake tubes in yellow to match the cold air intake.
View the Agency Power Porsche 996TT Cold Air Intake Kit Here.
