GMG Helps A 991 GT3 Sound Better—Not That It Needed Much Help

When I say that the Porsche 911 GT3/GT3 RS—particularly the 991 generation—makes one of the best sounds in the entire automotive kingdom, that’s not brand loyalty talking. The scream of the 3.8/4.0-liter six is enough to make the hair stand up on the back of your neck, and that’s with the factory exhaust setup.

When the engine is fitted with GMG’s WC Titanium Center Section, the note is intimidating—almost like that of a 991 Cup. Just listening to this short selection of fly-by clips is enough to stretch a smile across the steeliest faces. It’s enough to make the most reticent wax lyrical. There aren’t many street-legal motors which make music like this, so take a moment to crank the volume and bask in the bark of the GMG-modded motor.

This center section is a direct bolt-on replacement of the factory item that is handcrafted and meticulously TIG welded to aerospace specifications. Weighing just 4.4 pounds—less than 1/3 of the weight of the factory center section—helps trim a bit of weight from the rear of the GT3/GT3 RS, though that’s not its real appeal. Its proprietary megaphone design produces more power across the entire rev range, and the sonorous scream it makes is unrivaled by anything that wears a set of a license plates.

Since this modification is 100% emissions legal, will not void the factory warranty, and is easily installed, it almost sounds like a practical product—not that its owners are terribly concerned with practicality. Making a road car sound like its racing counterpart is a pastime for an irreverent few, but we can all attest to the way a screaming engine can brighten our days. Yes, it will frighten small children as it passes by, but the added presence and power brought by this easy upgrade is worth the price of a few nasty glances from the neighbors.