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- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
Performance Upgrade Chip – Varioram Euro with Lightweight Flywheel & Clutch for Euro Version (55-Pin DME)
Unleash the full performance potential of your 1995-1998 Porsche 993 Varioram (European specification) with the OE Match Performance Upgrade Chip, developed specifically for Driveblock-equipped vehicles fitted with an RS lightweight flywheel and clutch assembly. Designed exclusively for Euro-specification Varioram models (excluding US vehicles) using the 55-pin Bosch Motronic DME 0.261.203.679, this advanced calibration transforms the performance, drivability and responsiveness of Porsche's legendary air-cooled 3.6-litre flat-six.
Fits:
- Porsche 993 (911) C2 1995-97
- Porsche 993 (911) C4 1995-97
- Porsche 993 (911) C2S 1995-97
- Porsche 993 (911) C4S 1995-97
Suitable for both manual and Tiptronic transmissions, the OE Match Performance Chip delivers stronger low and mid-range torque, sharper throttle response and significantly improved acceleration while incorporating the latest Lightweight Flywheel (LWF) software.
Specifically Engineered for Lightweight Flywheel Conversions
A lightweight flywheel allows the engine to rev faster and respond more eagerly, but many conversions suffer from unstable idle, RPM dip and stalling during deceleration or when pulling away.
OE Match has developed one of the most advanced Lightweight Flywheel software solutions available to eliminate these common drivability issues while enhancing the benefits of the lighter rotating assembly.
The latest LWF calibration:
- Eliminates lightweight flywheel stalling
- Prevents RPM dropping below idle during deceleration and gear changes
- Improves clutch engagement from standstill
- Reduces unnecessary clutch slip, helping minimise clutch wear
- Maximises the sharper throttle response and faster engine acceleration provided by the lightweight flywheel
Former OE Match customers are welcome to have their chips updated free of charge to the latest Lightweight Flywheel coding.
Unlock the Hidden Performance of the Varioram Engine
The Porsche Varioram induction system already provides exceptional flexibility, but the factory Bosch Motronic calibration leaves noticeable performance untapped.
OE Match software removes the familiar hesitation below 4,000 rpm, allowing the engine to produce substantially stronger low and mid-range torque while delivering immediate throttle response throughout the rev range.
Performance benefits include:
- Increased horsepower and torque
- Sharper throttle response
- Eliminates the factory sub-4,000 rpm flat spot
- Improved acceleration throughout the rev range
- Faster engine response
- Smoother and more progressive power delivery
The result is a 993 that feels significantly more responsive and rewarding to drive in every situation.
Optional Immobiliser / Driveblock Delete
This chip can also be supplied with the Immobiliser / Driveblock function disabled for vehicles originally equipped with Porsche's factory Driveblock system.
Removing the Driveblock function eliminates the need to deactivate the immobiliser using the key fob before every journey, returning the vehicle to the operation of a factory non-Driveblock model.
To complete the conversion, install jumper relay 964.610.184.00 into relay position R61, exactly as Porsche specified.
Premium Fuel Calibration
Every OE Match Performance Chip is calibrated for 91 AKI (95 RON) premium unleaded fuel as standard.
For owners regularly using 93 AKI (98 RON) premium fuel, an alternative 98 RON calibration can be supplied. Simply select your preferred fuel grade when placing your order.
Unlike many generic performance chips, OE Match software is carefully developed to deliver enhanced performance without triggering the Check Engine Light.
Ordering Information
This calibration is compatible with:
- Porsche 993 Varioram (1995-1998 European specification)
- Bosch Motronic DME 0.261.203.679
- 55-pin DME connector
Manual transmission
- Tiptronic transmission RS lightweight flywheel and clutch conversions
Before ordering, verify the Bosch DME number printed on the Motronic label located on the DME beneath the left-hand front seat.
Why Choose OE Match?
Every OE Match Performance Chip is developed through extensive dyno testing and real-world road evaluation to deliver maximum performance while maintaining factory reliability.
Each calibration is tailored to the exact vehicle specification, optimised for lightweight flywheel conversions and engineered for premium fuel
Benefits
- Increased horsepower and torque
- Sharper throttle response
- Eliminates the factory sub-4,000 rpm lag
- Eliminates lightweight flywheel stalling
- Improved clutch engagement and drivability
- Faster engine response
- Reduced clutch wear
- Optional Driveblock removal
- Factory-quality reliability
Porsche 993 Varioram Performance Chips for Lightweight Flywheel Conversions
OE Match Performance Chips are engineered specifically for 1995-1998 Porsche 993 Varioram Euro models fitted with an RS lightweight flywheel and clutch assembly. By recalibrating the Bosch Motronic ECU and incorporating the latest Lightweight Flywheel software, these calibrations eliminate the common drivability issues associated with lightweight flywheel conversions while delivering stronger torque, faster throttle response and increased horsepower.
Design911 supplies vehicle-specific OE Match Performance Chips for manual and Tiptronic transmissions, with support for optional Driveblock removal, premium fuel calibrations and Bosch DME-specific programming. Every chip is carefully matched to the correct ECU to ensure maximum compatibility, reliability and performance