BBI Autosport Complete EFI System for 964 and 993 Porsche 911
$25,160.00–$29,563.00Price range: $25,160.00 through $29,563.00
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Engine management and EFI cannot be solved by isolated parts. This complete Porsche air-cooled 911 EFI system addresses fueling, ignition, and air delivery together, covering early 911, 964, and 993 platforms in both naturally aspirated and forced induction builds. Pre-configured out of the box and fully tunable when you need to go deeper.
BBI Autosport Complete EFI System for 964 and 993 Porsche 911
The Porsche air-cooled 911 EFI system treats engine management as exactly what it is: an ecosystem, not a parts list. Fueling, ignition, and air delivery are interdependent, and solving one without addressing the others produces gaps that show up on the dyno and on the road. That reasoning is behind engineering a complete powertrain system for the air-cooled 911 rather than releasing isolated components. Built for early 911, 964, and 993 platforms in naturally aspirated and forced induction configurations, the system gives DIY builders and professional shops a single, coherent solution with shared connectors, shared documentation, and shared engineering standards across every piece.
What the System Includes
The core of the Porsche air-cooled 911 EFI system is a set of individual throttle bodies (ITBs) designed specifically for the early 911, 964, and 993 platforms. ITBs give each cylinder its own dedicated throttle blade, which cuts pumping losses and puts atmospheric pressure directly at each intake valve rather than routing air through a shared manifold. The result is sharper throttle response and improved airflow efficiency whether the engine is naturally aspirated or force-fed. Paired to the throttle bodies is a platform-specific ECU and plug-and-play wiring harness that arrives with tunable base maps already loaded; it is ready to run from the initial startup without custom wiring work, and it is open to deeper calibration when the build calls for it.
Cam Sensor Kit and Distributor Block-Off
The cam sensor kit is what separates a basic EFI conversion from a properly sequenced one. It gives the ECU the camshaft position data needed to fire injectors and time ignition on an individual cylinder basis, which matters especially on forced induction builds where precise control over each combustion event is non-negotiable. For the ignition side of the conversion, the distributor block-off kit closes the distributor bore with an OE-quality finish once the distributor is removed for an electronic ignition setup. The fit is clean, the closure is sealed properly, and it does not leave the engine looking like an unfinished conversion.
Supporting Sensors and System Integration
The sensor suite rounds out the package with temperature, pressure, and position sensors validated specifically against this ECU rather than selected independently and hoped to work. That validation matters. An air-cooled flat-six running boost needs accurate manifold pressure data, intake air temperature readings, and throttle position input that the ECU already knows how to interpret. Every component in the system shares the same connector standard and documentation set, which keeps installation straightforward and troubleshooting methodical when something needs to be diagnosed.
Built for the Builder, Either Way
The system is designed to meet DIY builders and professional shops on equal terms. Pre-configured base maps mean the car starts and runs without a tuning session just to get it on the road; a full tune dials it in further. The plug-and-play harness is platform-matched so there is no fabricating custom looms or sourcing connectors from separate suppliers. For builders working on early 911 platforms where piecemeal EFI conversions have historically meant sourcing from five different vendors and resolving compatibility issues between each, having a system where every part was engineered to work with every other part is a meaningful difference.
Features
Individual throttle bodies (ITBs) purpose-built for early 911, 964, and 993; NA and forced induction compatible
Converts factory V-belts to modern multi-rib belts for more reliable operation and reduced parasitic loss
Platform-specific ECU with plug-and-play wiring harness and tunable base maps
Cam sensor kit for sequential fuel injection and individual cylinder timing
Distributor block-off kit with OE-quality finish for electronic ignition conversions
Validated temperature, pressure, and position sensors matched to the ECU
Shared connectors, documentation, and engineering standards across every component
What’s Included
Individual throttle bodies (ITBs)
Platform-specific ECU
Plug-and-play wiring harness with tunable base maps
Cam sensor kit
Distributor block-off kit
Supporting sensors (temperature, pressure, and position)
This is an engine management system (electronic fuel injection), not a complete engine
Frequently Asked Questions
Does this Porsche air-cooled 911 EFI system work on forced induction builds? Yes. The system is compatible with both naturally aspirated and forced induction builds across the early 911, 964, and 993 platforms. The validated sensor suite includes the pressure and temperature sensors needed for boosted applications, and the ECU supports the tuning parameters required to manage forced induction fueling and ignition accurately.
What does the cam sensor kit do in this EFI system? The cam sensor kit provides the ECU with camshaft position data, which enables sequential fuel injection and individual cylinder timing. Without a cam sensor, the ECU cannot distinguish between the compression and exhaust strokes, which limits the system to batch or semi-sequential injection. Sequential injection improves fuel atomization, throttle response, and overall combustion efficiency.
Is professional installation required for this system? The system is designed to meet both DIY builders and professional shops on equal terms. The plug-and-play wiring harness is platform-specific, the ECU arrives with tunable base maps already loaded, and all components share a common connector standard. That said, any EFI conversion on an air-cooled engine benefits from a dyno tune to dial in fueling and ignition timing to the specific build.
What platforms does this system fit? The system is built for the early Porsche 911, the 964, and the 993. Each component, including the individual throttle bodies, ECU, wiring harness, cam sensor kit, and supporting sensors, is engineered for compatibility across those three platforms in both naturally aspirated and forced induction configurations.
What is the purpose of the distributor block-off kit? The distributor block-off kit cleanly closes the distributor bore after the factory distributor is removed as part of an electronic ignition conversion. It provides an OE-quality seal so the engine does not have an open or improperly plugged bore once the distributor is no longer in use.
About BBi Autosport
In the realm of aftermarket tuning, many have sacrificed quality and craftsmanship for cost-effectiveness and convenience. However, this approach contrasts sharply with the ethos of some who prioritize finding premium materials and engaging in meticulous, time-intensive practices. These select few are dedicated to crafting products that embody passion, artistry, and craftsmanship, standing out in an industry often focused on cutting corners. BBi Autosport, established in the summer of 2005, was born from a mission to reintroduce a sense of artistry and craftsmanship to the exotic tuning market. Founded on a deep-rooted passion and a solid motorsport foundation, BBi Autosport has rapidly risen to prominence in the Porsche industry. The team, boasting over 30 years of collective professional racing experience, leverages this extensive background to fuel the engineering and development of their high-performance parts and services.
Additional Information
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The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.
Shipping Policy
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Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.
BP Pricing Difference
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We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well.
For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.
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