Performance Plenum

Fits:
Porsche 911 - 1974 - 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

911 used 2-Bolt type
964/993 uses 3-Bolt type

Please Note: 
The aluminium or plastic intake plenum(inlet manifold) is not included in the kit

Product Overview:

Inject power and precision into your vintage aircooled engine, now also for turbo or supercharged cars.

To be used when converting a G-Model 911 or a 964/993 engine to a turbocharged/supercharged engine with a 964 induction based Drive by Wire set-up

Conversion kit to a Porsche 964 based intake system to become a DBW (Drive by wire) intake based 74mm original Bosch throttle body (Sometimes referred to as 76mm) specifically executed all in CNC milled billet aluminum.

This is sold either with the intention to convert a Porsche 964/993 engine or to adapt and convert a 964 intake onto a G-model car when turbocharging (That sounds fun!).

Kit includes:

• Throttle body runner for 74mm throttle body in aluminum 
• Vacuum port on throttle body runner
• Original Bosch electronic throttle body
• Original Bosch MAP-T-sensor
• Connecting pipe out of aluminum replacing the resonance tube

Intake runners for the Porsche 911 G-model (2-bolt) or 964/993 (3-bolt) engine are made out of billet aluminium, 3D milled in a 5-axis machine. The port diameter indicated in the options is the diameter of the port in the cylinder head. 

The following parts are to be reused from your original 964 intake:
Rubber boots and clamps
The plenums (inlet manifolds)

Please Note:
Aluminium or plastic intake plenum is not included in the kit and neither are any of the items specifically listed as excluded above.

Fits:
Porsche 964 - 1989 to 1993
Porsche 993 - 1994 to 1998

Product Overview:

Inlet conversion kit consists of the throttle body runner and the resonance tube. This is what you need to convert a Porsche 996 GT3 MK1 or MK2 plenum to fit on a Porsche 964 engine. This kit is solid and made from a modified PA12 material making the original Porsche parts feel old and flimsy in comparison. 

Components Include: 

• Throttle body runner made out of a modified PA12 material and an industrial 3d moulding process
• Seal and original Porsche 997 GT3 Bosch 82mm electronic throttle body
• Vacuum tube with original resonance flap internals. Note the internals come from refurbished original 996 parts.
• Vacuum solenoid and reservoir with mounts as per images
• Rubber boots and clamps
• Vacuum connections, check valve and extra hose
• Original Bosch MAP-T-sensor for 1 bar

Fits:
Porsche 964 - 1989 to 1993
Porsche 993 - 1994 to 1998

Product Overview:
Transform your Porsche 964's performance with this sleek and high-tech intake kit designed for Porsche 964/993. This innovation marks a transition from the typical accelerator cable-based throttle to an electronic "drive by wire" throttle body. This advanced change streamlines the intake system by eliminating unnecessary components, resulting in a cleaner engine bay appearance. 

This modification offers a more drivable setup for highly tuned engines while incorporating the precision of a drive by wire (DBW) throttle.

This enhanced drivability is a key feature for a tuned aircooled engine and allows for smooth idle control with a cold as well as a hot engine. It simply makes the engine feel more modern as compared to the old ITB (individual throttle bodies) setups lacking in mid range torque and difficulties with the idle control.

Precision-Engineered Components:

• 82mm Throttle Body with Reinforced Industrial PA12 Manifold
• CNC-Milled Intake Manifold Stacks Crafted from Billet Aluminium
• Included Rubber Boots and Clamps for Easy Installation
• Islandworks Resonance Tube with Valve and Solenoid, Manufactured from the Same PA12 Material
• Integrated Manifold Pressure and Temperature Sensors
• Essential Vacuum Lines for Optimal Performance

Kit Includes
Complete intake with all the parts seen in the image manufactured from modified PA12 using an industrial process. This intake plenum has been optimized to fit on a Porsche 964 or Porsche 993 and includes all vacuum ports for both brake vacuum and to maneuver the resonance flap.

Introducing the Silverlake Porsche 911 GT3-style intake manifolds, designed for both ITB (Individual Throttle Bodies) or DBW (Drive-By-Wire) applications. These manifolds are compatible with air-cooled and water-cooled Porsche engines, offering a lightweight and high-performance alternative to the OEM cast aluminum version.

Available in two advanced materials: temperature-cured carbon fiber prepreg or glass fiber-reinforced thermoplastic, each plenum weighs just 825 grams (1.8 lbs), significantly lighter than the 2400 grams (5.3 lbs) of the stock aluminum version. This results in a total weight reduction of 3.15 kg (7 lbs) per pair — a 65% savings compared to the original.

Engineered and flow bench tested to ensure optimal airflow volume, the carbon fiber version features a matte finish, while the thermoplastic model comes painted in black, with the option for custom repainting. Both versions are free of logos, providing a clean, personalized look.

The kit includes two manifolds/plenums, the high-temperature silicone couplers are available separately.

This product replaces Porsche part 99611061996

Silverlake Projects presents a complete intake system for air-cooled Porsche 964/993 engines equipped with ITBs (Individual Throttle Bodies), designed for maximum performance and efficiency.

The intake system includes:

• 2 x GT3-style intake manifolds in carbon fiber
• Glass-reinforced thermoplastic intake T-tube for air filter connection
• Resonance flap or resonance flap delete tube in glass-reinforced thermoplastic, complete with vacuum actuator
• 6 x high-temperature silicone couplers for manifold-to-runner connections
• 4 x high-temperature silicone couplers for manifold-to-T/resonance flap connections
• TMAP sensor for accurate manifold pressure readings
• All mounting fasteners in lightweight titanium alloy
• Vacuum reservoir for optimal pressure management

Weighing just 4.5 kg (9.9 lbs), this system is significantly lighter than the stock 964 intake, which weighs 11.5 kg (25.3 lbs).

Why choose our system?

• 50% lighter than stock: A combination of carbon fiber, thermoplastics, and titanium results in a remarkably light system.
• Fuel rail precision mounting: Direct mounting to the runner ensures perfect injector press fit.
• Superior heat insulation: CNC-machined PTFE inserts between the cylinder head and runner offer exceptional heat protection, especially in idle or street driving conditions.
• Perfect sealing: Custom nitrile O-rings between the runner and cylinder head, as well as the intake T and throttle body, guarantee a secure, leak-free fit.
• Premium silicone sleeves: Silverlake’s precision-molded OEM+ silicone sleeves provide superior temperature resistance and ensure a flawless fit with all components, delivering better airflow and an unmatched look.
• Titanium fasteners: Tin-coated titanium alloy hardware not only reduces weight but also enhances the system’s aesthetic appeal.

This intake system is built for those seeking the ultimate performance, weight savings, and durability for their Porsche 964/993 engine.

Silverlake Projects presents a complete intake system for air-cooled Porsche 964/993 engines equipped with ITBs (Individual Throttle Bodies), designed for maximum performance and efficiency.

The intake system includes:

• 2 x GT3-style intake manifolds in glass-reinforced thermoplastic
• Glass-reinforced thermoplastic intake T-tube for air filter connection
• Resonance flap or resonance flap delete tube in glass-reinforced thermoplastic, complete with vacuum actuator
• 6 x high-temperature silicone couplers for manifold-to-runner connections
• 4 x high-temperature silicone couplers for manifold-to-T/resonance flap connections
• TMAP sensor for accurate manifold pressure readings
• All mounting fasteners in lightweight titanium alloy
• Vacuum reservoir for optimal pressure management

Weighing just 4.5 kg (9.9 lbs), this system is significantly lighter than the stock 964 intake, which weighs 11.5 kg (25.3 lbs).

Why choose our system?

• 50% lighter than stock: A combination of carbon fiber, thermoplastics, and titanium results in a remarkably light system.
• Fuel rail precision mounting: Direct mounting to the runner ensures perfect injector press fit.
• Superior heat insulation: CNC-machined PTFE inserts between the cylinder head and runner offer exceptional heat protection, especially in idle or street driving conditions.
• Perfect sealing: Custom nitrile O-rings between the runner and cylinder head, as well as the intake T and throttle body, guarantee a secure, leak-free fit.
• Premium silicone sleeves: Silverlake’s precision-molded OEM+ silicone sleeves provide superior temperature resistance and ensure a flawless fit with all components, delivering better airflow and an unmatched look.
• Titanium fasteners: Tin-coated titanium alloy hardware not only reduces weight but also enhances the system’s aesthetic appeal.

This intake system is built for those seeking the ultimate performance, weight savings, and durability for their Porsche 964/993 engine.