Fabspeed Lightweight Competition Exhaust for Porsche 981 GT4 / Spyder

Replace the GT4 or Spyder rear muffler with a lightweight, non-valved competition exhaust. Its straight-through layout prioritizes low weight and a loud sound; header packages and their output figures are separate. Fabspeed Motorsport, based in Fort Washington, Pennsylvania, develops exhaust systems, air intakes and ECU tuning for sports cars including Porsche. Its development work uses dynamometer testing, road evaluation and racetrack testing.

Technical Details

• Manufacturer product reference: FS.POR.981GT4.CESXX. The selected option determines the complete supplied configuration.
• 2.5-inch / 63.5 mm straight-through piping.
• 14–16-gauge T304L stainless construction.
• Manufacturer reports 19 lb less weight than the original rear muffler system.
• Select the required tip finish.
• Bolts to the matched original catalyst/header arrangement without cutting or welding.
• Check event sound limits; quieter operation is not provided by factory exhaust valves.
• Covered by the Fabspeed Lifetime Warranty, subject to its terms and exclusions.

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Fitment & Compatibility