Porsche 996 Sport Exhaust Part Number: The Complete Guide

The Porsche 996 (1998–2004) is a modern classic that continues to reward owners with thrilling performance. One of the most popular upgrades is the sport exhaust system—whether you're looking for the factory Porsche Sport Exhaust (PSE) or a high-quality aftermarket alternative. Knowing the correct part number is essential to ensure a perfect fit and hassle-free installation. In this guide, we break down OEM Porsche sport exhaust part numbers for all major 996 variants, explain how to verify compatibility, and offer practical advice for making the right choice.

OEM Porsche Sport Exhaust Part Numbers for the 996

Porsche offered the Sport Exhaust system as a factory option on later 996 models and as a retrofit kit for earlier cars. The system includes a pair of sport mufflers, a vacuum control unit, and the necessary wiring. Below are the common part numbers for each 996 variant.

996.2 Carrera and Carrera 4S (2002–2004)

The 996.2 generation came with the option of Porsche Sport Exhaust from the factory. The complete PSE kit is typically listed under part number 996.111.990.05 (often superseded to 996.111.990.06). This kit includes the left and right mufflers, vacuum valves, and a control module. The individual muffler part numbers are:

• Left muffler: 996.111.043.06
• Right muffler: 996.111.043.07

If you are retrofitting a 996.2 that did not come with PSE, you will need the full kit. Always verify with your VIN, as some late-production cars may have slightly different hardware.

996.1 Carrera (1999–2001)

The 996.1 did not offer PSE as a factory option. However, Porsche later released a retrofit kit specifically for these early cars. The part number is 996.111.990.03. This kit includes mufflers with modified inlet flanges and a vacuum system designed for the 996.1 chassis. Note that the 996.1 PSE kit does not require additional wiring for a switch—it is activated by engine load, not by a button. If you prefer a switchable system, aftermarket solutions may be more suitable.

996 Turbo (2001–2004)

The Turbo has a unique exhaust layout due to its twin-turbo engine. The factory PSE for the Turbo is part number 996.111.990.10. This system differs from the Carrera version in pipe routing and valve placement. The Turbo PSE also includes specific mufflers that maintain proper backpressure for the turbochargers. Do not attempt to use a Carrera PSE on a Turbo, as it will not fit and may affect performance.

996 GT3 (1999–2004)

The GT3 was never offered with a factory PSE. Owners wanting a sport exhaust must turn to the aftermarket. Several reputable brands offer GT3-specific systems that deliver the characteristic high-rpm sound without sacrificing track performance. When choosing an aftermarket system, look for part numbers that explicitly state fitment for the 996 GT3 (Mezger engine) and check for compatibility with your car's ECU and emission controls.

How to Verify the Correct Part Number for Your Car

Part numbers can change due to supersessions or regional differences. The most reliable way to confirm the correct number is to use your VIN with a Porsche dealer or an online parts catalog (such as Porsche’s own PET system). Here’s a quick checklist:

• Check your model year and engine: 996.1 (1999–2001) vs. 996.2 (2002–2004) have different PSE kits.
• Identify your chassis: Carrera, Carrera 4S, Turbo, and GT3 all have distinct exhaust layouts.
• Look for supersession: The part number you find may have been updated. The dealer can tell you the current active number.
• Inspect your existing system: If you have an OEM sport exhaust already, the part number is stamped on the muffler canister (usually on the inner face). You can use that to cross-reference.

Aftermarket Sport Exhaust Options and Their Part Numbers

While this article focuses on OEM part numbers, many 996 owners choose aftermarket systems for different sound characteristics, weight reduction, or cost savings. Reputable manufacturers like Fabspeed, Gemballa, and Cargraphic produce sport exhausts with their own proprietary part numbers. For example, Fabspeed’s 996 sport exhaust is often listed as FSP-996-PSE (or similar based on model). When evaluating aftermarket options:

• Get a clear part number from the manufacturer and confirm it fits your exact 996 variant.
• Check emissions compliance: Some aftermarket systems may not pass OBDII readiness or visual inspections in certain states.
• Consider materials: 304 stainless steel is popular for durability and sound. Titanium is lighter but more expensive.
• Look for warranties: Quality aftermarket brands usually offer two to five years of warranty.

Installation Considerations

Installing a PSE kit—whether OEM or aftermarket—involves more than just bolting on mufflers. The OEM PSE uses a vacuum-actuated valve system that requires connection to the engine’s vacuum source and, on 996.2 cars, to the button in the cabin. If you are retrofitting, you will need to run vacuum lines and possibly tap into the engine’s vacuum reservoir. Many owners choose to have a professional install the system to avoid boost leaks or incorrect wiring. The OEM kit part number includes all necessary hardware, but you may need to purchase additional gaskets or clamps separately.

Final Recommendation

If you want the authentic factory experience and the ability to switch between quiet and sport modes, order the OEM Porsche Sport Exhaust kit for your specific 996 model. Use the part numbers listed above as a starting point, then confirm with a Porsche dealer using your VIN. For owners of the 996.1 or GT3, the OEM retrofit kit (996.111.990.03) works well, but you lose the switchable feature. If you prioritize weight savings, aggressive volume, or a unique sound, aftermarket systems from proven brands are excellent alternatives—just be sure to verify fitment and emissions compatibility before purchasing. Whichever route you choose, a proper sport exhaust will transform your 996’s character and enjoyment.