Welcome To GMG Racing

Shop our new arrivals:

Product Title
Product Title

Cart 0

Sorry, looks like we don't have enough of this product.

Pair with
Is this a gift?
Subtotal Free
View cart
Shipping, taxes, and discount codes are calculated at checkout

Your Cart is Empty
GMG WC-Sport Exhaust System v2 for the Porsche 992.1
GMG WC-Sport Exhaust System v2 showing the 3D-printed crossover pipe
GMG WC-Sport Exhaust System v2 installed under a Porsche 992 Turbo
Porsche 992 Turbo on a lift at GMG Racing with the WC-Sport v2 exhaust installed
Porsche 992 Turbo with the GMG WC-Sport v2 exhaust, side view
Porsche 992 Turbo with the GMG WC-Sport v2 exhaust, rear three-quarter view
GMG WC-Sport v2 exhaust tips on a Porsche 992 Turbo
Porsche 992 Turbo with the GMG WC-Sport v2 exhaust on the road

GMG WC-Sport Exhaust System v2 | Porsche 992.1

$6,995.00

Hear it

Recorded on the white 992 Turbo in the photos

Description

The WC-Sport exhaust was redesigned for the 992.1, and the change you notice first sits under your thumb. For the first time, the system carries integrated valves that work with the factory Porsche sport exhaust controls, so one press of the button takes the car from a quiet, drone-free cruiser to a full, aggressive supercar exhaust note.

The crossover pipe has been redesigned too, and it is now 3D printed. Additive manufacturing gives its interior a geometry optimized for exhaust gas flow, which means less backpressure and a pitch tuned to bring the flat-six howl to the front. The system pairs it with HJS 200-cell HD sport catalysts, high-flow and German-made, which free up power and sharpen turbo spool response while keeping the car compliant.

Put the crossover and the sport cats together and the turbos carry significantly less thermal load, with noticeable gains in horsepower and torque across the whole rev range. The system is T304 stainless steel, TIG welded, built to hold up under high-heat track conditions, and it fits the way the factory system does.

Valves Closed, Valves Open

With the valves closed, the WC-Sport settles into a deep, muscular tone you can live with on a long commute or an early-morning cold start. Open them and it changes character completely: crisp and high-revving, with pronounced turbo whistle and sharp cracks on deceleration.

The short version

  • Integrated valves, run from the factory Porsche sport exhaust controls
  • 3D-printed crossover pipe with flow-optimized internal geometry
  • HJS 200-cell HD sport catalysts, made in Germany
  • T304 stainless steel, TIG welded
  • Approximately 30 lb

Fitment

  • 2020–2024 Porsche 911 Carrera
  • 2019–2024 Porsche 911 Carrera S
  • 2020–2024 Porsche 911 Carrera 4
  • 2019–2024 Porsche 911 Carrera 4S
  • 2021–2024 Porsche 911 Carrera GTS
  • 2021–2024 Porsche 911 Carrera 4 GTS
  • 2023–2024 Porsche 911 Carrera T
  • 2023–2024 Porsche 911 Dakar
  • 2021–2025 Porsche 992.1 911 Turbo / Turbo S

Details

Each piece in our collection is crafted with intention—balancing timeless design with modern responsibility. We use only high-quality, ethically sourced materials, working closely with skilled artisans who bring every detail to life with care and precision.

Our commitment to sustainability extends from recycled precious metals to responsible stone sourcing and mindful production practices. Whether it's a gift or a personal keepsake, your jewelry is made to last—and made to matter.

Need build help?

Get expert advice from our sales team! Chat now

GMG WC-Sport Exhaust System v2 | Porsche 992.1

$6,995.00
Shipping & Returns

International Shipping

In-stock orders leave the shop within two to three business days. We try to keep everything on the shelf, but there are stretches where we're backordered, and when that happens a team member will contact you with an accurate ship date before you have to ask for one. Hawaii, Alaska, Puerto Rico and international destinations run higher than domestic, and because the rate depends on where you are, contact us for a proper quote before you order.

Order tracking

Tracking numbers go out automatically as soon as your order is packed. If 72 hours have passed without one, check your junk folder, which is where these emails tend to end up, and if it isn't there either, contact us and we'll find it.

Get in touch

If you have a question about your order, contact us and a person at the shop will answer it. Customer service runs Monday through Friday, 8am to 5pm PST.

Sourcing & Materials

Sourcing

We are particular about what things are made from, which is why we build with Docol R8 tubing rather than whatever the steel yard had that week, and why our merge collectors are now 3D printed instead of fabricated the way everyone else still does it, because the printed part does the job better and the old way was leaving something on the table. None of it is done to look clever. It's done because the material that survives a season at the track is rarely the material that was easiest to order, and we'd rather go find the unorthodox thing than sell you the convenient one.

made here

Every GMG part is produced in Southern California by our own engineers and fabricators, and the process runs the whole way through the building: the 3D scan of the car, the engineering and post-processing, the first prototype, and the beating that prototype takes at the hands of our professional drivers and the crew who support them before anyone is allowed to call it a product. Every name in that chain is one we know. The partners whose products we list are held to the same expectation, because putting our name next to something means we're accountable for it, and we'd rather do without a listing than explain one away.

why it's on the shelf

Our home track is a short walk from the shop door, which means every harness bar, exhaust and performance part we sell has been run in anger under real conditions on our own cars before it goes on yours, and the ones that didn't hold up never made it to this page. That is the entire value system, and it comes from a lot of hours in competitive racing, where a failed part is a wrecked car rather than a bad review. We don't sell vanity upgrades. If a part is listed here it changes something you can measure or feel, or it makes the car safer, and if it does neither we have no interest in taking your money for it.

  • Related products