FJ Motorwerkes Catback Exhaust System for Porsche 911 992 GT3 Conversion 2019-2024

FJ Motorwerkes Premium Catback Exhaust System for Porsche 911 992 – GT3 Conversion Only

This system is designed exclusively for GT3-style conversion builds and is not compatible with factory bumper and diffuser setups. Engineered to deliver motorsport-grade sound and performance, our latest-generation catback features a 2025 lightweight design, valved functionality, and a muffler tuned to reduce drone — making it ideal for high-performance road and track builds.

Key Features and Benefits

• Performance Enhancements
  Removes factory OPFs, resonators, and secondary restrictions to unleash deeper, sharper, and more aggressive tones while improving flow and throttle response.

• Lightweight 2025 Design
  Constructed using advanced materials to cut weight while maintaining strength, durability, and perfect alignment with GT3-style rear sections.

• Valved System
  Retains OEM valve control. Original valves can be transferred over, giving you switchable sound levels — quiet when needed, aggressive when wanted.

• Drone Reducing Muffler
  Internal flow design minimizes unwanted drone for a comfortable cabin experience during cruising, even with the increased performance sound.

• Custom Sound Options
  Optional resonators available upon request to suit your specific tone preferences.

• Direct Fitment for GT3 Conversion Setups
  Designed to bolt up to GT3-style rear bumpers and diffusers only. Not compatible with standard 992 Carrera or Targa bumper configurations.

• Warranty & Build Quality
  Handcrafted from high-grade materials and backed by warranty for total peace of mind.

Compatible With Porsche 911 992 GT3 Conversion Builds

• Carrera, Carrera S, C2S, C4S

• Targa Base, Targa S

• GTS

What’s Included

• Rear muffler

• Exhaust tips (where shown)

• All required clamps and hardware

Build Time
Hand built to order with an average lead time of 10 to 25 days. Contact us to confirm availability or discuss custom specs.

Need help confirming fitment?
Message us or connect on Instagram @fjmotorwerkes — we’ll make sure everything fits your GT3 conversion perfectly.