Air Cooled Porsche 964/993 45-48mm EFI Throttle Body (1989-1998) | 42-46mm Ports
High-performance EFI Individual Throttle Body (ITB) kit for Porsche 964 & 993 (1989 – 1998). Features AT Power’s patented shaftless throttle technology for improved airflow, throttle response, power, and drivability. Complete bolt-on system with optional Emerald K6 ECU, harnesses, and base map package.
1989-1998 Engine Compatibility: Porsche 964 (1989 – 1994) | Porsche 993 (1994 – 1998). Suitable for both OEM and ported cylinder heads
Product Spec:
- Cable Pull or Drive By Wire Throttles Setup
- Ram Pipe Trumpet Torque Tool
- Optional Extras
Configuration Options Info here.
Professional installation, ECU Compatibility and Tuning required. Failure to install this product correctly will cause damage to your engine and void warranty.
Image for colour reference only. Does not update for extension lengths, TPS, DBW etc.
-
*Anodising Colours £150 exc. VAT - Silver & Black £0
Contact us for Multi Colour
*Select Cable Pull or Drive by Wire (DBW) Configuration
See Documents for Technical Drawings
*Select Cable Pull Model
*Select DBW Model
*Select 45mm Extensions and Trumpet Type
See Documents for Technical Drawings
*Select 48mm Extensions and Trumpet Type
See Documents for Technical Drawings
*Do you want require an ITG filter and backplate?
*Do you want require an ITG filter and backplate?
*Do you want require an Emerald3D K6 ECU with Full Engine Harness and Trigger Wheel kit?
Double-click main photo to view component type
*Do you want require an Emerald3D K6 ECU with Full Engine Harness and Trigger Wheel kit?
Double-click main photo to view component type
*Do you want require the Vacuum Take Off IAC kit?
*Do you want require the Fuel System, Heater Duct and Engine Breather?
£4,400.00 (exc. VAT)
Upgrade your air-cooled Porsche with the AT Power Porsche 964/993 EFI Throttle Installation Kit, a complete bolt-on solution that converts your classic flat-six to a high-performance Electronic Fuel Injection (EFI) Individual Throttle Body (ITB) system.
Designed for Porsche 964 and 993 models (1989 – 1998), this kit features AT Power’s patented shaftless butterfly throttle technology, delivering increased airflow, reduced turbulence, and improved volumetric efficiency. The result is sharper throttle response, increased horsepower and torque, improved drivability, and the iconic mechanical intake sound.
Each kit includes precision-machined aerospace-grade billet aluminium throttle bodies and all essential components required for a professional EFI conversion. An optional Emerald K6 ECU package is also available, supplied with engine harnesses, hardware, software, and a base calibration map.
Engineered as a fully reversible bolt-on upgrade, the system allows your vehicle to be returned to its original specification if required. Ideal for performance builds, restomods, and motorsport applications.
Compatibility
-
Porsche 964 (1989 – 1994)
-
Porsche 993 (1994 – 1998)
-
Suitable for both OEM and ported cylinder heads
Key Features & Benefits:
- 45-48mm throttle size for enhanced airflow and response
- Supports 42-46mm intake port sizes
- Optimised for naturally aspirated flat-six engines
- Ideal for classic restoration, performance road & motorsport use
- Precision engineered for perfect fit and long-term durability
Whether you are restoring a period-correct classic or unlocking additional performance from your air-cooled flat-six, this Porsche 964/993 throttle body upgrade offers proven performance gains with OEM-level fitment.
Optional Extras:
Fuel System Kit – Hose, Adaptors, Fuel Pressure Regulator & Pico 377cc Injectors
- Complete, matched fuel delivery solution for reliable performance
- High-quality hoses and precision adaptors ensure leak-free installation
- Includes fuel pressure regulator for stable, consistent fuel control
- Pico 377cc injectors deliver accurate atomisation and improved throttle response
- Designed for performance and longevity in high-demand engine applications
Heater Duct System
- Restores proper airflow to engine-mounted heating system
- Improves cabin heat efficiency and demisting performance
- Durable construction resistant to heat and vibration
- Direct-fit solution for clean, OEM-style installation
- Essential for road-driven and cold-weather vehicles
Engine Breather System
- Controls crankcase pressure for improved engine reliability
- Reduces oil misting and prevents intake contamination
- Helps maintain stable idle and consistent performance
- High-quality components designed for performance engines
- Ideal upgrade for both road and motorsport applications
Emerald ECU Kit – Cable Pull or Drive-By-Wire
- Advanced programmable ECU for precise engine management
- Available for traditional cable throttle or modern drive-by-wire setups
- Improves power delivery, throttle response, and drivability
- Supports custom tuning for modified and performance engines
- Proven reliability with extensive motorsport and road use
MegaFlow Air Filter
- High-flow design improves engine breathing and performance
- Superior filtration protects engine from dirt and debris
- Increases airflow without sacrificing filtration efficiency
- Reusable and easy to maintain
- Ideal for performance road and track applications
Make Power Personal – Anodised Finish Colours
If you require something more bespoke, please contact us.
Complete the setup – AirFlow Synchrometer here.
Important:
- ECU Compatibility and Tuning Required: Proper engine management system tuning is necessary for optimal operation and fuelling.
- Maps are supplied “as-is”. Professional dyno tuning is strongly recommended to ensure optimal performance and avoid potential engine damage.
If you require something more bespoke, please contact us.
Motorsport Use Only! This product is designed for professional motorsport applications and must be installed by a qualified technician. If assistance is required, please contact AT Power’s sales team.
Delivery / Lead Time
This Configured product is made to order:
- Standard dispatch time is approximately 8-9 weeks from receipt of payment.
Please note that this timeframe is a guideline and is not guaranteed.
If purchased with other items:
- Dispatched based on the item with the longest lead time in your order.
Postage and Shipping Costs:
Shipping costs are automatically calculated at the checkout after you enter your delivery address.
For sales, please see our Terms & Conditions.
Documents
Please Note
Ordering
Before placing your order, please ensure that the technical drawings match your engine’s inlet ports and that the throttle bodies will fit correctly, as engine specifications may vary or have been modified.
Anodised Finishes:
Our anodising has a gloss finish. Kindly note that the colour swatches or photoshopped images are intended for guidance only. Variations in colour and finish may occur due to the inherent nature of the anodising process and its suitability. Additionally, printed materials and on-screen displays may differ in shade. View our anodising colour examples here.
Returns and Cancellations:
Our Throttles are classified as ‘Configured’ products, as they are made to order. Please note that different terms apply to cancellations and refunds for configured items. You can find more information, clicking here.
Installation:
- ECU Compatibility and Tuning Required: Proper engine management system tuning is necessary for optimal operation and fuelling.
- Maps are supplied “as-is”. Professional dyno tuning is strongly recommended to ensure optimal performance and avoid potential engine damage.
Incorrect installation of this product may result in engine damage.
This is a motorsport-grade component and must be installed by a qualified technician. If you are unsure, we strongly advise that all mechanical and safety-critical work be carried out by a certified expert.
S-CAN 3D accepts no liability for damage resulting from improper installation or misuse. For support or guidance, please contact the AT Power sales team.
Upgrade your air-cooled Porsche with the AT Power Porsche 964/993 EFI Throttle Installation Kit, a complete bolt-on solution that converts your classic flat-six to a high-performance Electronic Fuel Injection (EFI) Individual Throttle Body (ITB) system.
Designed for Porsche 964 and 993 models (1989 – 1998), this kit features AT Power’s patented shaftless butterfly throttle technology, delivering increased airflow, reduced turbulence, and improved volumetric efficiency. The result is sharper throttle response, increased horsepower and torque, improved drivability, and the iconic mechanical intake sound.
Each kit includes precision-machined aerospace-grade billet aluminium throttle bodies and all essential components required for a professional EFI conversion. An optional Emerald K6 ECU package is also available, supplied with engine harnesses, hardware, software, and a base calibration map.
Engineered as a fully reversible bolt-on upgrade, the system allows your vehicle to be returned to its original specification if required. Ideal for performance builds, restomods, and motorsport applications.
Compatibility
-
Porsche 964 (1989 – 1994)
-
Porsche 993 (1994 – 1998)
-
Suitable for both OEM and ported cylinder heads
Key Features & Benefits:
- 45-48mm throttle size for enhanced airflow and response
- Supports 42-46mm intake port sizes
- Optimised for naturally aspirated flat-six engines
- Ideal for classic restoration, performance road & motorsport use
- Precision engineered for perfect fit and long-term durability
Whether you are restoring a period-correct classic or unlocking additional performance from your air-cooled flat-six, this Porsche 964/993 throttle body upgrade offers proven performance gains with OEM-level fitment.
Optional Extras:
Fuel System Kit – Hose, Adaptors, Fuel Pressure Regulator & Pico 377cc Injectors
- Complete, matched fuel delivery solution for reliable performance
- High-quality hoses and precision adaptors ensure leak-free installation
- Includes fuel pressure regulator for stable, consistent fuel control
- Pico 377cc injectors deliver accurate atomisation and improved throttle response
- Designed for performance and longevity in high-demand engine applications
Heater Duct System
- Restores proper airflow to engine-mounted heating system
- Improves cabin heat efficiency and demisting performance
- Durable construction resistant to heat and vibration
- Direct-fit solution for clean, OEM-style installation
- Essential for road-driven and cold-weather vehicles
Engine Breather System
- Controls crankcase pressure for improved engine reliability
- Reduces oil misting and prevents intake contamination
- Helps maintain stable idle and consistent performance
- High-quality components designed for performance engines
- Ideal upgrade for both road and motorsport applications
Emerald ECU Kit – Cable Pull or Drive-By-Wire
- Advanced programmable ECU for precise engine management
- Available for traditional cable throttle or modern drive-by-wire setups
- Improves power delivery, throttle response, and drivability
- Supports custom tuning for modified and performance engines
- Proven reliability with extensive motorsport and road use
MegaFlow Air Filter
- High-flow design improves engine breathing and performance
- Superior filtration protects engine from dirt and debris
- Increases airflow without sacrificing filtration efficiency
- Reusable and easy to maintain
- Ideal for performance road and track applications
Make Power Personal – Anodised Finish Colours
If you require something more bespoke, please contact us.
Complete the setup – AirFlow Synchrometer here.
Important:
- ECU Compatibility and Tuning Required: Proper engine management system tuning is necessary for optimal operation and fuelling.
- Maps are supplied “as-is”. Professional dyno tuning is strongly recommended to ensure optimal performance and avoid potential engine damage.
If you require something more bespoke, please contact us.
Motorsport Use Only! This product is designed for professional motorsport applications and must be installed by a qualified technician. If assistance is required, please contact AT Power’s sales team.
Delivery / Lead Time
This Configured product is made to order:
- Standard dispatch time is approximately 8-9 weeks from receipt of payment.
Please note that this timeframe is a guideline and is not guaranteed.
If purchased with other items:
- Dispatched based on the item with the longest lead time in your order.
Postage and Shipping Costs:
Shipping costs are automatically calculated at the checkout after you enter your delivery address.
For sales, please see our Terms & Conditions.
Documents
Please Note
Ordering
Before placing your order, please ensure that the technical drawings match your engine’s inlet ports and that the throttle bodies will fit correctly, as engine specifications may vary or have been modified.
Anodised Finishes:
Our anodising has a gloss finish. Kindly note that the colour swatches or photoshopped images are intended for guidance only. Variations in colour and finish may occur due to the inherent nature of the anodising process and its suitability. Additionally, printed materials and on-screen displays may differ in shade. View our anodising colour examples here.
Returns and Cancellations:
Our Throttles are classified as ‘Configured’ products, as they are made to order. Please note that different terms apply to cancellations and refunds for configured items. You can find more information, clicking here.
Installation:
- ECU Compatibility and Tuning Required: Proper engine management system tuning is necessary for optimal operation and fuelling.
- Maps are supplied “as-is”. Professional dyno tuning is strongly recommended to ensure optimal performance and avoid potential engine damage.
Incorrect installation of this product may result in engine damage.
This is a motorsport-grade component and must be installed by a qualified technician. If you are unsure, we strongly advise that all mechanical and safety-critical work be carried out by a certified expert.
S-CAN 3D accepts no liability for damage resulting from improper installation or misuse. For support or guidance, please contact the AT Power sales team.
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