Performance Upgrade 28 Pin Chip USA/Canada Spec Catalyst Bypass Engines. Porsche 3.2 Carrera 1987-89  ❭  CHIP911EXH8789

OE Match 28-Pin Performance Upgrade Chip – USA/Canada Specification Premuffler / Cat Bypass Configuration

Take full advantage of your 1987-1989 USA/Canada specification Porsche 911 Carrera 3.2 with the OE Match 28-Pin Performance Upgrade Chip, engineered specifically for 930/21 and 930/25 catalyst engines fitted with a premuffler or catalytic converter bypass pipe, while retaining either the factory rear silencer or a sports muffler.                     

Fits:

• Porsche 911 1987-1989 3.2L G50           

Removing the restrictive catalytic converter significantly improves exhaust flow, but without recalibrating the Bosch Motronic ECU, the engine cannot fully benefit from the modification. This OE Match Performance Chip has been developed specifically for freer-flowing exhaust systems, optimising ignition timing and fuel delivery to maximise horsepower, torque and throttle response while maintaining excellent reliability.

1987 Model Year – 24-Pin or 28-Pin?

1987 was a transition year, with Porsche changing from a 24-pin EPROM to a 28-pin version during production.

The only reliable way to determine which chip your vehicle requires is to remove the DME control unit and count the number of pins on the original EPROM. The factory chip is a black rectangular unit fitted with a silver foil label displaying a number similar to 1267355xxx.

If your DME contains a 24-pin EPROM, this is the correct OE Match Performance Chip. If your vehicle has a 28-pin chip, please select the dedicated OE Match 28-pin version.

Planning to fit a premuffler or cat bypass in the future? This chip can be installed on a standard catalyst-equipped car today, allowing you to enjoy immediate improvements in drivability and performance before upgrading your exhaust at a later date.

Engineered for Real Performance

Unlike generic replacement chips, the OE Match Performance Chip has been developed from a completely new calibration. Hundreds of hours of software development, road testing and dyno evaluation on more than one hundred Carrera 3.2 models have produced a calibration that transforms the way your Porsche drives.

Exclusive programming provides:

• Smoother idle with virtually no idle hunting
• Increased low and mid-range torque
• Sharper throttle response
• Elimination of the factory flat spot below 4,000 rpm
• Reduced deceleration backfiring and RPM dipping
• Stronger pulling power from just 1,500 rpm
• Dyno-proven horsepower and torque gains throughout the rev range

The result is a Carrera that feels significantly more responsive, delivering stronger acceleration and improved flexibility in everyday driving. Many owners describe the transformation as making the car feel 500-600 pounds lighter.

Many customers also report 10-15% improvements in highway fuel economy, thanks to improved part-throttle efficiency.

Why Choose OE Match?

This is not a generic "one-size-fits-all" performance chip. Every OE Match calibration is developed specifically for individual Porsche engine and exhaust configurations, ensuring the Bosch Motronic engine management is perfectly matched to your vehicle.

Extensive research, coding revisions and real-world testing have produced a calibration that delivers outstanding drivability, stronger performance and factory-like refinement.

Benefits

• Increased horsepower and torque
• Faster throttle response
• Eliminates the factory low-RPM hesitation
• Improved mid-range acceleration
• Smoother idle quality
• Reduced deceleration backfiring
• Better everyday drivability
• Potential improvements in fuel economy
• Maximises the performance benefits of a premuffler or cat bypass exhaust

Porsche 911 3.2 Carrera Premuffler & Cat Bypass Performance Chips

A premuffler or catalytic converter bypass is one of the most effective upgrades for improving exhaust flow on the Porsche 911 3.2 Carrera. To realise the full benefit of these modifications, the Bosch Motronic ECU should be recalibrated to match the reduced exhaust restriction.

OE Match Performance Chips are developed specifically for USA and Canada specification Carrera models, with calibrations tailored for standard, premuffler and cat bypass exhaust configurations. Every chip is engineered to improve torque, throttle response, drivability and overall engine performance while maintaining the reliability expected from an air-cooled Porsche.