Fabspeed 718 GT4 / GTS / Spyder 4.0liter engine to - GT4RS Conversion Package (2020+)

Fabspeed 718 GT4 / GTS / Spyder 4.0liter engine to - GT4RS Conversion Package (2020+)

Marsoni

M251S

$3297.97

Get it in 3 business days with 1 day shipping. Friday, May 29

Fabspeed 718 GT4 / GTS / Spyder 4.0liter engine to - GT4RS Conversion Package (2020+)SKU: POR. 718GT4. RSVLV Fabspeed 718 GT4 GTS Spyder 4. 0liter engine to GT4RS Conversion Package (2020+) Transform your 2020 2024 Porsche 718 Cayman GT4 GTS or Boxster Spyder GTS 4. 0L with the Fabspeed GT4RS Conversion Package a complete bolt on exhaust retrofit featuring MAXFLO GT4RS system. This upgrade delivers dyno proven gains of +30 HP and +22. 8 ft lbs TQ across the RPM band pushing over 400 WHP while retaining catalysts and stock ECU.

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Reviewed in the United States on June 22, 2025