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Aluminium Intake Plenum. Porsche 996 / 997 ❭ 97174
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08

Fits:
Porsche Porsche 996 Carrera C2 3.6L
Porsche Porsche 996 Carrera C4 3.6L
Porsche Porsche 996 Carrera C2 3.4L*
Porsche Porsche 996 Carrera C4 3.4L*
(*FOR CARS WITH "ELECTRONIC ACCELERATOR (M620)" NOT FOR EARLY CABLE THROTTLE CARS)
Fits:
Porsche 997 GEN1 3.6L
Porsche 997 GEN1 3.8L S
The 996 did not mark the beginning of a new Porsche chapter, it marked the beginning of a new Porsche book. The prolific 911 was baptized and emerged water cooled, leaving the legendary air cooled engine to live in Porsche history.
The total and complete redesign of the 911 engine was fitted with the vintage plastic "T" style air distributor that Porsche has used since the early 911 days. This intake system was found on virtually all 911 Carrera's until the arrival of the DFI cars in 2009.
The unique, innovative and patented design of the IPD Plenum employs a "Y" design that improves performance by channeling air left and right to the cylinder banks more efficiently. This design reduces air flow turbulence and increases air flow velocity resulting in substantial power gains throughout the entire rpm band.
The IPD plenum not only delivers impressive power and torque increases but also creates a more linear power and torque band. Tiptronic customers even claim considerable improvements with more positive shifting after installing the IPD Plenums.
Just like the Carrera S, it's difficult to find power for the naturally aspirated 3.4L Carrera, but the IPD Plenum does it better than any other after market mod available. This simple bolt on performance upgrade replaces the factory plastic air distributor with the IPD patented aluminum "Y" style Plenum.
The IPD Plenum delivers impressive horsepower gains of 25 and torque gains of 22 by means of a superior and more efficient design. These gains are mainly felt in the mid range where it is most needed and most enjoyed but performance improvements are realized throughout the entire rev range. Impressive Performance improvements like this will truly transform your Porsche driving experience.
These added power gains in the mid range create a more liner power curve helping to minimizing the dip in power typically experienced in the factory curve resulting in considerable performance improvements.
The 996 Plenum installation is a direct bolt on R & R (remove and reinstall) procedure. Installation is relatively straight forward for mechanically inclined DIY customers although IPD strongly recommends all Plenum installations be performed by a trained and qualified Porsche technician.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
97174
The product you are viewing cross references to these numbers
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Turbo 2010-13

Fits:
Porsche 997 Turbo 2007-09
Adding bolt-on horsepower to the 997 Turbo is a continuous quest by many enthusiasts looking for more power. Reverting back to old tuning technologies, Agency Power has developed a larger throttle body and plenum kit for the Porsche 997 Turbo to gain added performance. The point of a larger throttle body is to get in more air.
The more air you bring in, the more power you make. The 997 Turbo's engine intake system works off pulses, so how that air is diverted to either side of the engine is not as important as the volume incoming. The plenum kit includes an OEM Porsche Cayenne Turbo throttle body (part# 94860511503) which is a direct bolt on and plug in for the electronic throttle control with no modifications needed.
This throttle body has a 77.64mm inner diameter compared to the stock one of 75.64mm. We chose to go with this smaller diameter throttle body to give the car more low end horsepower and torque. If the diameter of the throttle body is to big, it will increase turbo lag and performance gains will only be made at the mid to top end RPM range. Since most 997 Turbo users drive their car on the street and track, we developed this product to substantially increase throttle response and improve "usable" power.
The Agency Power plenum kit is made using high quality 6061 aluminum that has been TIG welded and pressure tested in a T shape to mimic the OEM design. The CNC machined 4 bolt throttle body flange features a groove to accompany a rubber o-ring to ensure a secure and sealed fit with the OEM Porsche Cayenne throttle body. The T plenum features the necessary fittings for stock vacuum hoses and breather lines and includes a 1 way check valve needed. Each T plenum is powder coated gloss black for an OEM look and includes new silicone couplers in black and worm clamps to secure it to the factory intake manifolds. The installation of the plenum requires removal of the factory airbox and Y pipe to access the component.
Installation of the Agency Power plenum kit DOES NOT require the ECU to be flashed. The factory ECU will adjust accordingly to the change in throttle body diameter. However, corresponding mods including an ECU flash will only bring out additional power. As it stands alone, the plenum kit will add a bolt on 20 wheel horsepower to your Porsche 997 Turbo. As tested on a VR700 kit, the plenum added nearly 45 horsepower and 60 ft/lbs of torque. Splitting and diverting the air flow and directing it towards the cylinders at a much higher air speed.
Recommended installation time is approximately 3 hours.
HP Gains: 40-45Bhp. 60 ft/lbs of torque
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
AP-997TT-105
The product you are viewing cross references to these numbers
- Porsche 997 MK1 TURBO 2007-09

The patented IPD Plenum design works exceptionally well with all forced induction applications and the 997 Turbo is no exception. Power and torque increases provided by the IPD plenum are impressive and stay over and above all factory power curves from launch to redline. Maximum power increases take place in the midrange where it's most needed and most critical.
Maximum horsepower gains range from 30 to 35 depending on vehicle condition and pre-existing mods. The 997 Turbo plenums deliver smooth and linear power with considerably quicker boost response creating a longer and more desirable power band. The Turbo plenums deliver reliable performance for both street and motorsport applications enhancing the already visceral Porsche Turbo driving experience.
Unlike the 996 Turbo the 997 Turbo requires an "adaptation" period that can be fully realized with either a series of hard pulls on the dyno or 10 to 50 miles of hard driving which of course IPD recommends only be performed on a closed circuit race track.
The 997 Turbo has an extremely sensitive ECU/DME making it prone to external environmental corrections so it is imperative that proper, adequate and consistent cooling be available when you dyno any of the 997 Turbos to get accurate and reliable dyno figures both before and after each test.
Installation of all Turbo Plenums is highly recommended to be performed by qualified and trained Porsche technicians.
Turbo customers looking to increase engine power without pushing the motorsport envelope to redline would best benefit from the 74mm IPD Turbo Plenum.
This version of the 997 Turbo plenum utilizes the factory 74mm throttle body and delivers impressive performance gains for both stock and slightly modified Turbos with exhaust and software. Beyond these performance mods we recommend upgrading to the larger 82mm IPD Turbo Plenum.
The 74mm IPD Turbo Plenum is also designed to perform with the higher flowing IPD "Y" Pipe.
Fits:
Porsche 997.1 Turbo
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
97274
The product you are viewing cross references to these numbers
- Porsche 997 MK1 TURBO 2007-09

The patented IPD Plenum design works exceptionally well with all forced induction applications and the 997 Turbo is no exception. Power and torque increases provided by the IPD plenum are impressive and stay over and above all factory power curves from launch to redline. Maximum power increases take place in the midrange where it's most needed and most critical.
Maximum horsepower gains range from 30 to 35 depending on vehicle condition and pre-existing mods. The 997 Turbo plenums deliver smooth and linear power with considerably quicker boost response creating a longer and more desirable power band. The Turbo plenums deliver reliable performance for both street and motorsport applications enhancing the already visceral Porsche Turbo driving experience.
Unlike the 996 Turbo the 997 Turbo requires an "adaptation" period that can be fully realized with either a series of hard pulls on the dyno or 10 to 50 miles of hard driving which of course IPD recommends only be performed on a closed circuit race track.
The 997 Turbo has an extremely sensitive ECU/DME making it prone to external environmental corrections so it is imperative that proper, adequate and consistent cooling be available when you dyno any of the 997 Turbos to get accurate and reliable dyno figures both before and after each test.
Installation of all Turbo Plenums is highly recommended to be performed by qualified and trained Porsche technicians.
Power obsessed Turbo customers looking to push the motorsport envelope a little harder would best benefit from the larger 82mm "Competition" IPD plenum fitted with a factory 997 GT3 82mm Porsche throttle body (additional purchase required).
The larger 82mm intake opening allows for even greater air flow to help optimize the more extreme mods such as larger turbos, intercoolers, Y Pipes and more aggressive software.
This larger version Plenum is also designed to perform with the higher flowing IPD "Y" Pipe.
997.1 Turbo Competition Plenum: HP Gains 30-35 / Torque Gains 35-40. Requires upgrading factory 74mm TB with 997 GT3 82mm Thottle Body
Fits:
Porsche 997.1 Turbo
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
97282
The product you are viewing cross references to these numbers
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