Porsche 992 GT3 RS Gets Even More Extreme With Manthey Racing Upgrades

by AutoExpert   |  22 November, 2024

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Porsche’s 992 GT3 RS is already a track beast straight from the factory, but Manthey Racing, the motorsport masterminds from Germany, have taken it to another level. They’ve just unleashed their much-anticipated performance kit for the GT3 RS, and it’s even more radical than anyone expected.

At the heart of the upgrades is a massive carbon panel that replaces the rear window. It’s 25% lighter and comes with a shark-like vertical fin, inspired by Porsche’s 963 endurance racer. The fin doesn’t just look aggressive; it improves cornering stability and funnels cooler, denser air into the engine by pushing away the warm air around the radiators.

Porsche 992 GT3 RS

The aero improvements don’t stop there. Manthey’s kit adds wheel-arch Gurney flaps, dive planes on the front bumper, and a carbon splitter. The rear wing gets even more aggressive with larger end plates, while the rear diffuser is now wider with longer fins. Carbon disc-shaped covers smooth out airflow around the rear wheels. All these upgrades add up to a massive increase in downforce, with the Manthey-kitted GT3 RS generating over 2,205 lbs (1,000 kg) of downforce at 177 mph (285 km/h), compared to the stock car’s 1,900 lbs (860 kg).

Porsche 992 GT3 RS

To handle all that extra downforce, the kit includes stiffer suspension components, with 30% stiffer springs up front and 14% stiffer ones at the rear. The dampers are electronically adjustable across three modes, plus manual adjustments in the Track setting. Racing-spec brake pads complete the mechanical upgrades, while Manthey wisely left the stock 518 hp (525 PS) naturally aspirated 4.0-liter flat-six untouched.

Porsche 992 GT3 RS

All this comes at a price: €76,911 ($80,300) on top of the GT3 RS’s starting price of $241,300. Developed in collaboration with Porsche’s R&D team at Weissach, the kit is available through official Porsche dealers. Manthey promises the new setup will shave significant time off the GT3 RS’s 6:49.3 Nürburgring lap, though bad weather has so far prevented official testing. 

Porsche 992 GT3 RS

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