991 GT3 «Lab Rat» Performance Package

Dundon Motorsports 991 GT3 LabRat is a full performance platform upgrade — a cohesive system developed with 3D scanning, CAD design, and real-world lap time testing. It’s not just power, not just grip — it’s the whole package working together to extract every ounce of performance from the car.

We start with our D3 Power Package, unlocking +40lb-ft and +50 whp with a long-tube header system, intake upgrade, and our signature Lifetime Muffler. The result is immediate throttle response, monster midrange torque, and a soundtrack that’s pure Cup car.

Next, we install the Valkyrie Aero Package, which includes our soon to be released Carbon Rear Decklid, swan neck carbon rear wing, dual carbon dive planes, and carbon front splitter  — all developed using CFD and real track data. The aero adds confidence-inspiring balance at speed and precision in cornering.

Suspension gets the full LabRat treatment with the Dundon Track Day Setup Package — titanium tie rods, adjustable arms, shims, caster packs, and more — all designed to work with MCS 3-Way Adjustable Dampers that retain front lift functionality and give you complete control over damping behavior on track and street.

Forgeline GS1R lightweight forged wheels reduce unsprung weight, sharpen turn-in, and improve braking, while the Performance Friction Brake Package gives you pro-level performance from the first lap to the last with fade-resistant rotors, pads, and high-temp fluid.

This is engineering over everything — designed, tested, and validated for GT3 drivers who want results.