do not press the back button…
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
- Porsche 911 1984-1986 3.2L
OE Match Performance Upgrade Chip – USA/Canada Specification Pre-muffler / Cat Bypass Configuration
Unlock the full potential of your 1984-1986 USA/Canada specification Porsche 911 3.2 Carrera with the OE Match Performance Upgrade Chip, developed specifically for 930/21 and 930/25 catalyst engines fitted with a pre-muffler or catalytic converter bypass pipe, together with either the factory rear silencer or a sports muffler.
Fits:
- Porsche 911 1984-1986 3.2L
Replacing the restrictive catalytic converter allows the engine to breathe more freely, but without optimised Bosch Motronic calibration the full performance benefits cannot be realised. This OE Match chip has been specifically engineered to complement a premuffler or cat bypass exhaust, optimising ignition timing and fuel delivery to maximise both performance and drivability.
Planning to install a premuffler or cat bypass later? No problem. This chip can be installed now and used with the standard catalytic converter before upgrading the exhaust at a later date, allowing you to enjoy immediate improvements while remaining fully compatible with your planned modifications.
Designed for Maximum Drivability
Developed through hundreds of hours of coding, road testing and dyno development on more than one hundred Carrera 3.2 models, this is far more than a generic replacement EPROM.
Exclusive OE Match software delivers:
- 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
- Strong pulling power from as little as 1,500 rpm
- Dyno-proven horsepower and torque gains throughout the rev range
The transformation is immediate, making the car feel lighter, more responsive and significantly more enjoyable to drive. Many owners describe the improvement as feeling like the car has lost 500-600 pounds in weight.
Many customers also report 10-15% improvements in highway fuel economy, thanks to more efficient part-throttle mapping.
Engineered Specifically for Premuffler & Cat Bypass Cars
Unlike generic performance chips, this calibration has been developed specifically for Carrera 3.2 models equipped with a premuffler or catalytic converter bypass. By matching the engine management to the improved exhaust flow, the Bosch Motronic system can fully exploit the benefits of the freer-flowing exhaust while maintaining excellent reliability and everyday usability.
Benefits
- Increased horsepower and torque
- Improved throttle response
- Eliminates the factory low-RPM hesitation
- Stronger mid-range acceleration
- Smoother idle quality
- Better drivability
- Potential improvements in fuel economy
- Maximises the benefits of a premuffler or cat bypass exhaust
Why Choose OE Match?
OE Match Performance Chips are individually calibrated for specific Porsche engine and exhaust configurations rather than relying on generic software. This model has been engineered specifically for USA and Canada specification Carrera 3.2 models running a premuffler or catalytic converter bypass, delivering outstanding drivability, sharper performance and maximum value from your exhaust upgrade.
Porsche 911 Carrera 3.2 Premuffler & Cat Bypass Performance Chips
Installing a premuffler or catalytic converter bypass is one of the most popular upgrades for the Porsche 911 Carrera 3.2, reducing exhaust restriction and improving engine breathing. To unlock the full benefit of these modifications, the Bosch Motronic engine management should be recalibrated to match the revised exhaust characteristics.
OE Match Performance Chips specifically developed for catalyst-equipped USA and Canada Carrera models, ensuring the ignition and fuel maps are optimised for freer-flowing exhaust systems. Whether you're fitting a premuffler today or planning a future exhaust upgrade, these calibrations deliver improved throttle response, stronger torque and a more engaging driving experience.