FABSPEED HIGH FLOW SPORT CAT FOR 964 PORSCHE 911 CARRERA
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Fabspeed High Flow Sport Cat for 964 Porsche 911 Carrera / 4 / RS America / Speedster
Fabspeed’s High Flow Sport Cat for 964 Porsche 911 Carrera restores the exhaust note the air-cooled flat-six was born with, without the drone that makes some aftermarket systems tiresome to live with day to day. Every 964’s factory equipment is now over thirty years old, and the restriction it adds only grows as the core ages. This upgrade is a direct bolt-on replacement for that factory equipment, built to the 964’s original hangers so fitment is exact, and it features a high-flow catalytic converter rather than an open pipe, so the car breathes easier through the midrange without giving up the emissions compliance a numbers-matching 911 owner cares about.
Features
- Direct bolt-on replacement for factory equipment now more than 30 years old on every 964
- A clean, emissions-compliant solution if your OEM catalytic converter is missing, damaged, or broken
- No catalyst-related check engine light, guaranteed
- Simple DIY bolt-on installation, no cutting or welding required
- Backed by the Fabspeed lifetime warranty
Specifications
- Cell Technology: 300-cell high-flow catalytic converter
- Flow Rating: up to 90-93% of straight-pipe flow
- Material: T304L CNC mandrel-bent stainless steel, 14-16 gauge
- Dyno Curve Gain: +24whp / +16ft-lbs
- Dyno Peak Gain: +20whp / +13ft-lbs
Applications
- Porsche 911 Carrera: 964 | 1989-1994 | 3.6L F6
- Porsche 911 Carrera 4: 964 | 1988-1994 | 3.6L F6
- Porsche 911 Carrera RS America: 964 | 1993-1994 | 3.6L F6
- Porsche 911 Carrera Speedster: 964 | 1989-1994 | 3.6L F6
Notes
- All Fabspeed products are expected to ship within one week of order, though timelines are often much quicker
Frequently Asked Questions
- Will the Fabspeed High Flow Sport Cat fit my 964 Carrera, Carrera 4, RS America, or Speedster? Yes. It’s a direct bolt-on fit for the full 1988-1994 964 Carrera range, including the C4, RS America, and Speedster, using the factory hangers with no cutting or welding.
- Why replace the factory catalytic converter if it isn’t broken? Every 964’s factory equipment is now over 30 years old, and its internal flow restriction only increases as the core ages, dulling both power and the air-cooled flat-six’s exhaust note. The High Flow Sport Cat restores flow while keeping the car fully catalyzed and street legal.
- Will installing a high-flow sport cat trigger a check engine light? No, guaranteed. A high-flow catalytic converter changes the exhaust flow pattern, and a poorly engineered one can throw a false P0420 code because the oxygen sensors read differently than the ECU expects; Fabspeed’s core is designed to stay within the factory-expected sensor range, so no catalyst-related code is triggered.
- How difficult is the Fabspeed High Flow Sport Cat to install? It’s a simple, Level-1 DIY bolt-on installation. No cutting or welding is required, and it installs using the factory mounting points.
- What is the Fabspeed High Flow Sport Cat made from? It’s built from T304L CNC mandrel-bent stainless steel in 14-16 gauge, with a high-flow catalytic core rated at up to 90-93% of straight-pipe flow.
- Is the Fabspeed High Flow Sport Cat backed by a warranty? Yes. It’s backed by the Fabspeed lifetime warranty covering materials and workmanship.
About Fabspeed
Fabspeed Motorsport is based in Fort Washington, Pennsylvania. Their 26,000 sq. ft. facility serves as a hub for car clubs including the Porsche Club of America, Ferrari, McLaren, Lamborghini, and more. Fabspeed handles every step of product development in house, from design and engineering to dyno testing, street trials, and racing assessments, ensuring the quality and performance of every part. Fabspeed also collaborates closely with race engine builders and tuners from Italy, Germany, and the United States to create its Ultimate Performance line. To meet the standards of a demanding global audience, Fabspeed builds its systems from aerospace-grade austenitic stainless steel, titanium, and carbon fiber.
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We want you to feel confident before making your purchase. Here are a few important details to help you better understand this product and how it fits into your space.
- Please review the product dimensions carefully to ensure the right fit for your space
- Color may vary slightly due to lighting and screen settings
- Materials and finishes are selected for both durability and visual appeal
- Some items may require simple assembly upon delivery
- Perfect for both everyday use and long-term comfort
If you have any questions about this product, feel free to reach out to our support team. We're here to help you make the right choice.
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Product Size Guide
Please refer to the general size reference below to better understand how this product may fit into your space. Dimensions may vary slightly depending on the design and materials.
| Category | Small | Medium | Large |
|---|---|---|---|
| Decor & Accessories | Up to 10″ | 10″ – 20″ | 20″+ |
| Tables | Up to 30″ | 30″ – 60″ | 60″+ |
| Seating | 1 Seater | 2–3 Seater | 4+ Seater |
| Storage Units | Compact | Standard | Large Capacity |
| Lighting | Small Fixture | Standard Fixture | Large Fixture |
Note: For exact product dimensions, please refer to the specifications section above. This guide is intended as a general reference only.
FABSPEED HIGH FLOW SPORT CAT FOR 964 PORSCHE 911 CARRERA
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