Classic Retrofit
Classic Retrofit designs and manufactures direct-replacement electronic upgrades for Porsche classic cars and classic EV conversions.
We also consult with OEM and bespoke build specialist manufacturers on HVAC and ignition systems.

The Electrocooler 'half system' allows existing AC cars to use our electric compressor and modern condenser with the existing evaporator blower mounted in the smuggler's box.
Fits Porsche 911 models 1965 to 1989 with factory/dealer fitted AC.
If your factory or dealer fitted evaporator / blower is in good condition but your compressor and hoses are tired, this is the kit for you. The kit contains compressor and mounts for fitment ahead of the fuel tank. The new condenser can be fitted in place of the washer bottle on 74 onwards cars. Early cars can mount the condenser in the rear wheel well. Complete new set of hoses and all wiring are included.
This is a 'half system' AC system to be used with the factory evaporator/blower.
- All Electric. All modern components
- Weighs around 22lbs (10 kg)
- Retains factory evaporator / blower
- Fits in front luggage bay
- Lightweight narrow hose set weighing under 4lbs (1.5kg)
- Easy Install. Non-damaging bolt-in installation
- Clutter Free. Uses existing air vents to deliver cool air
- Simple to Use. Controlled by a single ‘smart button’
- Energy Efficient. Uses less than 1 HP of engine power
- Kits available to fit 911s from 1965 to 1989 (please check for fitment before purchase)
For Installation Guide CLICK HERE
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)

Fits:
Porsche 911- 1965 to 1989
Our new, Gen 2 fresh air blower assembly for Porsche 911 models is designed to replace the ancient and noisy original fresh air blower.
As with all Classic Retrofit products, it fits straight into the car without modification, using the original electrical plug and Bowden cable work.
It is true plug and play.
Internally, the blower unit uses a modern double-cage fan which can move more air than the original. The real game changer is that it incorporates a modern parallel flow evaporator.
This allows a 911 with our A/C to get rid of the clunky separate A/C blower in the smuggler's box (LHD) or behind the passenger footboard (RHD). Two blowers are integrated into one modern unit, saving weight and space.
You can pair this blower with a traditional A/C system or if you want to join the electric A/C revolution, try our complete electric kit.
- Replaces original fresh air blower
- Double cage fan
- Parallel flow evaporator
- Recirculation function
- Plug and play electrical connector and Bowden cable
- Weighs 5.0 kg
For Installation Guide CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90157302100
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)

Compressor mounted in the smugglers box on left hand drive cars and ahead of the fuel tank for right hand drive cars.
The Electrocooler electric air conditioning system for Porsche 911 is a revolutionary update for the complicated A/C and ventilation setup fitted to Porsche 911 models from 1974 to 1989.
The kit is a total redesign of the 911 A/C system, with additional improvements to the fresh air blower unit and warm air distribution. It transforms the experience of travelling in an aircooled Porsche 911.
• Weighs around 35lbs (16 kg)
• Fits in front luggage bay
• Lightweight narrow hose set weighing under 4lbs (1.5kg).
• Easy Install. Non-damaging bolt-in installation.
• Clutter Free. Uses the standard fresh air vents to deliver cool air.
• Simple to Use. Control by a single 'smart button'.
• Modern double cage Gen 2 blower.
• Energy Efficient. Uses less than 1 HP of engine power.
• Kits available to fit 911 from 1974 to 1989
This is a dual condenser system suitable for high heat (> 35 deg C) and humidity climates.
A double condenser installation is highly recommended for many hot and humid parts of the world, such as Florida or Singapore.
Second condenser can be installed in the left rear fender, ahead or behind the rear wheel. See back of install manual for details.
Please note
Our electric air conditioning likes a healthy current so we recommend upgrading the original alternator in the vast majority of installations.
All kits now include our Gen 2 Blower.
Complete HVAC kit for the Porsche 911 models 1974 to 1989.
The kit is a complete redesign of the 911 A/C system with notable improvements to the blower and heating distribution as well.
For Installation Guide CLICK HERE
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)

The Electrocooler electric air conditioning system for Porsche 964/993 is an update to the original factory A/C system using an electric compressor pump.
• Fits vehicles with or without factory AC
The 964/993 blower unit and fans are retained but everything else is replaced.
All parts are provided except for the factory evaporator, which is available from Porsche
• All Electric. All modern components
• Weighs around 22 lbs (10 kg)
• Fits in front of vehicle
• Lightweight narrow hose set weighing under 4lbs (1.5kg)
• Easy Install. Bolt-in installation
• Clutter Free. Uses the standard fresh air vents to deliver cool air
• Simple to Use. Control by a single 'smart button' or original CCU
• Energy Efficient. Uses less than 1 HP of engine power
• Fits all models of 964 / 993 including RS
• Fits vehicles with or without factory AC
All 964 systems are now shipped with two condensers for increased cooling performance. Check our installation guide HERE for details on second condenser fitment.
Please note! Our electric air conditioning likes a healthy current. We recommend upgrading the original alternator in the vast majority of installations. Porsche 964 and 993 models are less affected but may still benefit.
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97

Compressor mounted in the smugglers box on left hand drive cars and ahead of the fuel tank for right hand drive cars.
The Electrocooler electric air conditioning system for Porsche 911 is a revolutionary update for the complicated A/C and ventilation setup fitted to Porsche 911 models from 1974 to 1989.
The kit is a total redesign of the 911 A/C system, with additional improvements to the fresh air blower unit and warm air distribution. It transforms the experience of travelling in an aircooled Porsche 911.
• Weighs around 30 lbs (14 kg)
• Fits in front luggage bay
• Lightweight narrow hose set weighing under 4lbs (1.5kg).
• Easy Install. Non-damaging bolt-in installation.
• Clutter Free. Uses the standard fresh air vents to deliver cool air.
• Simple to Use. Control by a single 'smart button'.
• Modern double cage Gen 2 blower.
• Energy Efficient. Uses less than 1 HP of engine power.
• Kits available to fit 911 from 1974 to 1989
This is a single condenser suitable for climates up to 35 deg C ambient and low humidity. For high heat and humidity climates we recommend our dual condenser system.
Please note
Our electric air conditioning likes a healthy current so we recommend upgrading the original alternator in the vast majority of installations.
All kits now include our Gen 2 Blower.
Complete HVAC kit for the Porsche 911 models 1974 to 1989.
The kit is a complete redesign of the 911 A/C system with notable improvements to the blower and heating distribution as well.
For Installation Guide CLICK HERE
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)

- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1978-1989 3.3L Turbo (930)

Brand: Classic Retrofit
• 18 way Fuse panel.
• LED Fuse failure indicators
• Integrated headlamp relays
• Cover and backing plate
• Pack of fuses (4 x 25, 4 x 15A, 6 x 7.5A, 6 x 5A)
911-FPE fuse panel fits all 'long hood' 911s 1969 - 1973. It requires no serious modifications to the original wiring loom or metalwork and is 'plug and play'.
The smoked perspex fuse panel hints at standard appearance but allows the led indicators to be seen.
For Installation Guide CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161208600
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

(Bosch Ref 0227300004)
Classic Retrofit replacement CDI+ ignition offers you bespoke modern electronics in a standard looking package. The CDI+ unit requires no modifications to the original wiring harness or vehicle metalwork and is 'plug and play'.
The CDI+ is a direct replacement for the 3 pin and 6 pin Bosch units fitted to Porsche 911's between 1969 and 1983 (and turbo models to ~1988). All CDI+ units have a 48 MHz microprocessor onboard to control ignition timing.
Advanced Unit:
The advanced unit allows the adjustment/tuning of the ignition advance curve and other features by plugging in a laptop. This can be achieved by 'overlaying' a curve on top of the distributor weights/springs curve or by locking the distributor and replacing the curve completely. Either way, you can unlock the true potential of your engine by adjusting fuelling and having the ignition curve to match.
The CDI+ has all the features of the basic unit but allow more flexibility in adjustment:
-Fully programmable ignition advance curve.
-Hard RPM limiter with adjustable ignition cut schemes
-Soft RPM limiter with adjustable ignition retard
-Launch RPM limiter
-Double spark at all RPMs
-Max RPM tell tale
-Shift Light output
-Clutch pedal input
-Tacho calibration
-Upgradeable through firmware updates
Fits:
Porsche 911 1978-83
Porsche 930 3.3L 1978-89
For Installation Guide CLICK HERE
For 911-CDI+ Dyno Test Results CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93060270200
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)

(Bosch reference 227-200-001)
Classic Retrofit replacement CDI+ ignition offers you bespoke modern electronics in a standard looking package. The CDI+ unit requires no modifications to the original wiring harness or vehicle metalwork and is 'plug and play'.
The CDI+ is a direct replacement for the 3 pin and 6 pin Bosch units fitted to Porsche 911's between 1969 and 1983 (and turbo models to ~1988). All CDI+ units have a 48 MHz microprocessor onboard to control ignition timing.
Basic Unit:
The basic unit is a plug and play replacement for the Original Bosch CDI. It will work with the existing distributor without modification and still uses the weights and springs for the advance curve. It is pre-set at the factory (to your specification) and has the following features:
-Hard RPM limiter.
-Soft RPM limiter.
-Double spark at all RPMs
-Shift Light output
-Tacho calibration
-Upgradeable through firmware updates (at one of our specialists)
-The following parameters can be adjusted using the hidden 'jog wheel'.
-Hard RPM limiter.
-Soft RPM limiter.
-Shift light RPM.
-Tacho calibration.
The basic unit can be upgraded to an advanced unit at a later date by one of our specialists.
Advanced Unit:
The advanced unit allows the adjustment/tuning of the ignition advance curve and other features by plugging in a laptop. This can be achieved by 'overlaying' a curve on top of the distributor weights/springs curve or by locking the distributor and replacing the curve completely. Either way, you can unlock the true potential of your engine by adjusting fuelling and having the ignition curve to match.
The CDI+ has all the features of the basic unit but allow more flexibility in adjustment:
-Fully programmable ignition advance curve.
-Hard RPM limiter with adjustable ignition cut schemes
-Soft RPM limiter with adjustable ignition retard
-Launch RPM limiter
-Double spark at all RPMs
-Max RPM tell tale
-Shift Light output
-Clutch pedal input
-Tacho calibration
-Upgradeable through firmware updates
Fits:
Porsche 911 1965-77
For Installation Guide CLICK HERE
For 911-CDI+ Dyno Test Results CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160270700
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera

Brand: Classic Retrofit
Fits:
Porsche 911 1974-89 including Turbo
Click 'Zoom in' for large parts diagram.
Diagram ref no 18
For Installation Guide CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161209306
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)

Brand: Classic Retrofit
In the kit you get the following items:
• 21 way Fuse panel.
• LED Fuse failure indicators
• Integrated headlamp relays
• Mounting kit (gasket and standoffs)
• Pack of fuses (6 x 25, 6 x 15A, 6 x 7.5A, 6 x 5A)
Replacement Fuse panel installed. No drilling, no crimping, no soldering.
Fits:
Porsche 911 1974-89 including Turbo
For Installation Guide CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161208699
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)