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The Porsche 911 GT3 RS (991 generation) represents the absolute pinnacle of track-focused, naturally aspirated 911 models. The 991.1 model introduced a 4.0-litre engine producing 493 bhp paired exclusively with a 7-speed PDK transmission and widebody Turbo-derived chassis. The subsequent 991.2 refined the aerodynamic package and upgraded the engine to deliver 513 bhp, screaming to an incredible 9,000 rpm redline. Both iterations offer an uncompromising motorsport driving experience.

JXL Performance supplies the specialised aftermarket components required to maintain, tune, and optimise your GT3 RS.

Explore our full selection of upgrades by category: To improve engine breathing and exhaust velocity, browse our Intake and Exhaust sections, and manage track temperatures with our Cooling upgrades. Fine-tune your chassis alignment with our Suspension options, optimise fitment using Wheels/Spacers, and maintain consistent deceleration with our Brakes components. For dedicated motorsport builds, explore our Engine Build and Drivetrain hardware, reduce mass with Interior seating, and adjust aerodynamic balance via our Exterior range. Keep your flat-six engine operating reliably using genuine-spec Service Parts. You can also browse our complete inventory in the Shop All Parts collection.