Catalyst / Bypass
Fits
Porsche 992 GT3 4.0L / GT3RS
Performance headers improve exhaust flow and sports car sound; Sport Headers Bypass Catalytic Converters.
Sport catalytic converters bypass for maximum performance, please these are to be used with tuned or remapped cars only.
Constructed from equal-length T304 stainless steel
C.N.C. mandrel-bent tubing for improved torque and equalized engine pulsing
More power and torque across the RPM band and dramatically improved sports car sound
Direct replacement for the OEM headers with no cutting or welding required
Key technical information and benefits of the Exhaust Race Headers with Cat Bypass for Porsche 992 GT3 by DesignTek:
Enhanced Performance: DesignTek's Exhaust Race Headers with Cat Bypass are engineered to significantly improve the performance of your Porsche 992 GT3. They reduce exhaust restriction, allowing for better airflow and increased horsepower and torque.
Weight Reduction: These race headers are typically lighter than the stock exhaust components, contributing to reduced overall vehicle weight. This weight savings can enhance the GT3's handling and responsiveness.
Exhaust Note: The race headers produce an aggressive and exhilarating exhaust note, providing a more engaging driving experience. They create a distinctive sound that complements the GT3's high-performance character.
Catalytic Converter Bypass: By bypassing the catalytic converter, these headers are designed for track-oriented driving. This helps maximize exhaust flow and performance, but it may not be street-legal in all areas. Please check local regulations before installation.
Durable Construction: Crafted from high-quality materials, DesignTek's race headers are built to withstand the demanding conditions of track use. They offer long-lasting durability and reliability.
When considering the purchase of Exhaust Race Headers with Cat Bypass for your Porsche 992 GT3, here are some factors to keep in mind:
Compatibility: Ensure that the race headers are compatible with your specific Porsche 992 GT3 model. Compatibility information can typically be found in the product specifications or by consulting with a knowledgeable retailer or Porsche specialist.
Track Use: These headers are primarily designed for track use due to the cat bypass. If you intend to use them on public roads, check local emissions and noise regulations to ensure compliance.
Professional Installation: It is highly recommended to have the race headers installed by a professional technician with experience in Porsche exhaust systems. Proper installation ensures optimal performance and avoids potential issues.
At Design911, we specialize in providing high-quality Porsche parts and accessories, including DesignTek's Exhaust Race Headers with Cat Bypass for the Porsche 992 GT3. Our team of experts can assist you in finding the correct headers for your GT3, offering professional advice and guidance throughout the selection and installation process. With our expertise and extensive product range, we are dedicated to helping you enhance your Porsche's performance and driving experience. Contact us today to explore our offerings and receive personalized assistance with your Porsche upgrade needs.
NOTE: Sports catalytic converters and bypass pipes do not have type approval and are not legally permitted for use on vehicles manufactured after 1st March 2001 in the United Kingdom. They are not MOT compliant and must not be used on public roads. These components are intended for race and track use only. If you are located outside the UK, please consult your local laws and regulations to ensure compliance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606109924
The product you are viewing cross references to these numbers
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24
Shop Securely
12 Month Warranty
Worldwide Delivery
Fits
Porsche 992 GT3 4.0L / 992 GT3RS
Performance headers improve exhaust flow and sports car sound; Sport Headers Bypass Catalytic Converters.
- Sport catalytic converters increase performance (these are to be used with tuned or remapped cars only)
- Constructed from equal-length T304 stainless steel
- C.N.C. mandrel-bent tubing for improved torque and equalized engine pulsing
- More power and torque across the RPM band and dramatically improved sports car sound
- Direct replacement for the OEM headers with no cutting or welding required
Key technical information and benefits of the Exhaust Sport Headers for Porsche 992 GT3 by DesignTek:
Enhanced Performance: DesignTek's Exhaust Sport Headers are engineered to significantly improve the performance of your Porsche 992 GT3. They reduce exhaust restriction, allowing for better airflow and increased horsepower and torque.
Exhaust Note: The sport headers produce an exhilarating exhaust note, providing a more engaging driving experience. They create a distinctive sound that complements the GT3's high-performance character.
Catalytic Converter Cell reduction: By reducing the catalytic converter, these headers are designed for track-oriented driving. This helps maximize exhaust flow and performance, but it may not be street-legal in all areas. Please check local regulations before installation.
Durable Construction: Crafted from high-quality materials, DesignTek's race headers are built to withstand the demanding conditions of track use. They offer long-lasting durability and reliability.
When considering the purchase of Exhaust Race Headers with Cat Bypass for your Porsche 992 GT3, here are some factors to keep in mind:
Compatibility: Ensure that the race headers are compatible with your specific Porsche 992 GT3 model. Compatibility information can typically be found in the product specifications or by consulting with a knowledgeable retailer or Porsche specialist.
Track Use: These headers are primarily designed for track use due to the cat bypass. If you intend to use them on public roads, check local emissions and noise regulations to ensure compliance.
Professional Installation: It is highly recommended to have the race headers installed by a professional technician with experience in Porsche exhaust systems. Proper installation ensures optimal performance and avoids potential issues.
NOTE: Sports catalytic converters and bypass pipes do not have type approval and are not legally permitted for use on vehicles manufactured after 1st March 2001 in the United Kingdom. They are not MOT compliant and must not be used on public roads. These components are intended for race and track use only.
If you are located outside the UK, please consult your local laws and regulations to ensure compliance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606109926
The product you are viewing cross references to these numbers
- Porsche 992.1 GT3 4.0L / 992 S/T 4.0L 2021-24
- Porsche 992.1 GT3 RS 4.0L 2022-24
Shop Securely
12 Month Warranty
Worldwide Delivery
Exhaust Catalytic Converters & Bypass Pipes – Performance, Efficiency & Flow Control
The catalytic converter plays a crucial role in your Porsche’s exhaust system, reducing harmful emissions while maintaining optimal exhaust flow. Positioned between the exhaust manifold and silencer, it converts toxic gases such as carbon monoxide, hydrocarbons, and nitrogen oxides into less harmful emissions before they exit the tailpipe.
At Design911, we offer a complete range of catalytic converters and bypass pipes for Porsche vehicles. Our manufacturer-quality converters ensure reliable emission control and long-term performance, while our bypass options are designed for track or performance use, optimising exhaust flow for maximum power and throttle response.
Whether you’re maintaining your Porsche to meet emissions standards or upgrading for improved exhaust performance, our selection includes both direct-fit converters and performance bypass kits built from high-grade stainless steel for strength, corrosion resistance, and durability.
What Do Catalytic Converters & Bypass Pipes Do?
A catalytic converter uses a fine mesh of precious metals to trigger chemical reactions that break down pollutants. The bypass alternative eliminates restriction in the exhaust flow, improving performance in non-emissions-controlled environments such as track driving.
Core Functions:
- Converts
toxic exhaust gases into environmentally friendly emissions.
- Maintains
exhaust back pressure for engine efficiency.
- Reduces harmful NOx, CO, and HC emissions.
- Supports smoother engine performance and throttle control.
- Bypass versions enhance exhaust flow and improve power output for track cars.
Upgrading to a performance-grade system ensures your Porsche continues to meet emission requirements — or achieves greater flow and responsiveness for motorsport applications.
Why Do Catalytic Converters Fail?
Catalytic converters are exposed to extreme heat, unburnt fuel, and contaminants — all of which can degrade their performance over time.
Common Causes of Failure Include:
- Carbon
or oil buildup blocking the internal honeycomb.
- Thermal
damage from overheating or rich fuel mixtures.
- Physical
damage from road debris or misfiring engines.
- Corrosion
due to moisture and exhaust condensation.
- Age-related wear reducing catalytic efficiency.
A failing converter can cause reduced engine power, poor
fuel economy, rattling sounds, or a check-engine light. Replacing it
restores emissions compliance, performance, and exhaust efficiency.
Why Replace or Upgrade
with Precision-Engineered Components?
Replacing a failing converter or upgrading to a bypass pipe ensures your Porsche maintains peak performance and reliability.
Key Benefits:
- Restores optimal emissions performance and efficiency.
- Improves exhaust flow and throttle response.
- Reduces engine stress and fuel consumption.
- Durable stainless-steel construction for longevity.
- Direct-fit
compatibility for Porsche 911, Cayman, Boxster, Panamera, Macan
and more.
- Performance bypass options available for track and tuning applications.
Whether you want emissions compliance or maximum flow for competition use, our parts deliver reliability, precision, and performance.
Highlights:
- Direct-fit catalytic converters and bypass pipes for Porsche models.
- Precision-engineered for optimal flow and reduced emissions.
- Built from heat-resistant stainless steel for durability.
- Bypass pipes for performance tuning and track applications.
- Restores power, efficiency, and exhaust sound balance.
- Available for classic and modern Porsche vehicles.
