APR Carbon Fiber Intake System with Inlets (3.0T/3.7T)
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The APR Intake and Turbocharger Inlet System for the Porsche 911 (992) 3.0T and 3.7T offers a substantial upgrade in performance by addressing all restrictions within the factory intake system. This complete system is made from high quality carbon fiber with a gorgeous matte finish and billet fittings integrated directly into the carbon fiber. Smooth and organic transitions throughout the system promote airflow though the tightly packed rear engine design. We've increased flow through the air filters, out of the airbox, and into the turbochargers, addressing each weak point in the factory system. On the flow bench with the higher flowing factory system our system flowed 45% better with less pressure drop. On the dyno this directly translated to more power. On the lower output base 3.0T Carrera with our Stage 1 93 octane tune, we picked up 22 WHP and 22 FT-LBS of torque, to the wheels, and on the 3.7T Turbo S with stock software we saw gains as high as 29 AWHP and 27 AWFT-LBS of torque over stock!
![](https://images.goapr.com/560x/ci100059_001.jpg)
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FEATURES AND BENEFITS
- +22 WHP / +22 WFT-LBS (APR STG 1 93 3.0T Carrera Base)
- +29 AWHP / +27 AWFT-LBS (Stock ECU 3.7T Turbo S)
- Flows 45% better than stock (3.0T Carrera Base) with less pressure drop and lower IAT
- High-Quality Matte Carbon Fiber design with smooth and organic transitions
- Complete system Includes filters, airbox, turbo inlets, brackets, and hoses
- Addresses each flow restriction in the factory design
- Direct plug and play upgrade
- Easy to access and washable pleated cotton gauze filters
- Filters flow 9% better than stock
- Airbox outlet has a 43% larger cross sectional area than stock
- Turbo inlets have a 9% (3.0T) and 23% (3.7T) larger cross sectional area than stock
- Removes the need for a restrictive flow straightener on the 3.7T
- Billet mounting points integrated into the design for a smooth transition and minimal clamps
- Integrated billet PCV fitting with Nitrile umbrella check valve
- Proper flex section provides necessary flex with minimal flow disruption
- Works on both 3.0T (Carrera/Targa) and 3.7T (Turbo) engines
- Does not impact emissions
THE FACTORY DESIGN
The factory intake system is spilt into 2 mostly mirrored intake systems for each turbo on the H6 3.0T and 3.7T boxer engine. Air flows freely into an airbox with an easy to access panel filter, and then exits and takes a sharp turn through a small turbo inlet pipe into the turbocharger. This pipe is so restrictive, a flow straightener was added to the factory 3.7T pipe, further reducing flow, in an effort to combat compressor surge. The APR system addresses each of the weak points.
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FILTERS
The filters are upgraded to a high-flow pleated cotton gauze filter that flows 9% better than stock. The filters are washable and reusable and easily slide in and out of the airbox, just like the factory system, making servicing simple. Lastly, there’s no need to remove the intake system with this design, and the filters are even compatible with the factory airbox.
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AIRBOX
The airbox is redesigned using carbon fiber in an organic shape to promote airflow. The outlet of the airbox, which is a major restriction point, has a cross sectional area 43% larger than stock, which dramatically outflows the factory components on their own. This system bolts right into place, directly replacing the factory unit. All necessary billet brackets and new PCV hoses are included.
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![](https://images.goapr.com/374x/ci100059_021.jpg)
TURBO INLET PIPES
Most of the gains on the system come from upgrading the outlet of the airbox and the turbo inlet pipes. Without upgrading these two critical areas, an upgraded intake system has a trivial impact on performance as this area of the system restricts performance the most. We’ve increased the outlet of our system to 60mm, which has a 9% larger cross sectional area than the 58mm 3.0T system and 23% larger cross sectional area than the 53mm 3.7T system. Due to the additional flow, we were able to do away with the restrictive flow straightened found on the factory 3.7T system, which resulted in exceptional gains in performance without compressor surge.
![](https://images.goapr.com/374x/ci100059_006.jpg)
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FULL SYSTEM RESULTS
The results of our upgrades to the intake system are substantial. On the lowest performance setup, a base Carrera with the 3.0T and our Stage 1 93 octane tuning, we saw gains as high as 22 WHP and 22 FT-LBS of torque, at the wheels, over stock. As output increases with higher output models and turbo setups, so does flow and the importance and potential of upgrading the intake system. This is even more potent on the 3.7T as the inlets are much smaller than the 3.0T, which saw gains as high as 29 AWHP and 27 AWFT-LBS of torque on an otherwise stock Turbo S! In total, on the freer-flowing 3.0T we saw flow gains as high as 45% higher than stock. This means less strain on your turbochargers, less pressure drop, higher flow, lower intake air temperature (IAT), ability to reach higher boost levels, and of course, more power and torque. If performance is important to you, this is the best upgrade you can make to you 911’s intake system!
![](https://images.goapr.com/374x/ci100059_assets_30t_vs_apr_flow.png)
![](https://images.goapr.com/374x/ci100059_assets_30t_vs_apr_flow_gain.png)
![](https://images.goapr.com/374x/ci100059_assets_30t_vs_apr_flow_gain_percent.png)
![](https://images.goapr.com/374x/30t_992_911_s1_vs_s1_in_93_w.png)
![](https://images.goapr.com/374x/37t_992_911_turbo_s_s0_vs_s0_in_93_w.png)
PHOTOS
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Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: +1 (334) 502-5180
Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801
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Phone: (800) 680-7921 Local Phone: +1 (334) 502-5181 Fax: +1 (334) 502-5180
Address: APR LLC, 4800 US HWY 280 West, Opelika, AL 36801
The following 2 users liked this post by Arin@APR:
Aperture776 (11-16-2023),
surquhar (11-01-2023)
#2
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This looks awesome! Does this mod change the sound of the intake from inside the car? Do we get more intake and turbo spool noise?
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Sound is slightly enhanced, but not as much as you would probably recall from other front engine platforms with open air filters.
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For the Carrera 3.0T, I believe you stated that the quoted gains are with your Stage 1 ECU tune + the new APR intake system. If so, what would be the gains of the air intake system with stock ECU tune (no ECU tune)?
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SBAD (11-23-2023)
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We used carbon fiber because it can take the heat and doesn't have exorbitant tooling charges on what will ultimately be a low volume platform. We can also have thin wall thicknesses to maximize flow compared to other materials such as castings, silicone, or rotomolded plastic.
Last edited by Arin@APR; 11-03-2023 at 12:33 PM.
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Love_Tacos_911 (11-20-2023)
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Here’s a rare behind the scenes look into the development process of the new APR Porsche 911 (992) Intake system for the 3.0T and 3.7T.
During development the team fully instrumented the vehicle, including adding a ton of temperature and pressure sensors, external pitot tubes for measuring flow velocity, and more.
After many hours of analyzing the stock car, there were three main problems: excessive depression in the turbo inlets, high compressor outlet temps, and future serviceability. Countless simulations and flow bench tests later, we were left with the design we sell today. A 45% increase in intake air flow, large decreases of depression, lower pre-intercooler charge temps of 5+°C, factory serviceability, significant horsepower gains and a myriad of other benefits!
Want to learn more about the system?
Visit here: https://www.goapr.com/ci100059
![](https://images.goapr.com/800x/CI100059_dev_001.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_002.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_003.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_004.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_005.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_006.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_007.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_008.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_009.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_010.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_011.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_012.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_013.jpeg)
During development the team fully instrumented the vehicle, including adding a ton of temperature and pressure sensors, external pitot tubes for measuring flow velocity, and more.
After many hours of analyzing the stock car, there were three main problems: excessive depression in the turbo inlets, high compressor outlet temps, and future serviceability. Countless simulations and flow bench tests later, we were left with the design we sell today. A 45% increase in intake air flow, large decreases of depression, lower pre-intercooler charge temps of 5+°C, factory serviceability, significant horsepower gains and a myriad of other benefits!
Want to learn more about the system?
Visit here: https://www.goapr.com/ci100059
![](https://images.goapr.com/800x/CI100059_dev_001.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_002.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_003.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_004.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_005.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_006.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_007.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_008.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_009.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_010.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_011.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_012.jpeg)
![](https://images.goapr.com/800x/CI100059_dev_013.jpeg)
#12
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Am I missing something?
Last edited by dhirm5; 11-20-2023 at 11:20 AM.
#13
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That's the gains of just the intake system on a car that already has a tune.
The following 2 users liked this post by spdracerut:
dhirm5 (11-20-2023),
Jeahbladejeah (11-20-2023)
#14
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Our ECU upgrades offer massive gains:
Up to +161 WHP and +187 WFT-LBS on the base models
Up to +176 WHP and +144 WFT-LBS on the S and GTS models
And of course, everyone loves to swap S/GTS turbos to the base. With our tune that gives you up to +234 WHP and +195 WFT-LBS. Add the intake for more.