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GMG Racing RSR Exhaust Center Section for 2011+ Porsche 911 GT3 [991] w/Oval Tip 50 STATE LEGAL


Quick Overview

Sku # : gmg-racing-porsche-991-gt3-exh-ctr-oval-tip-ng
The GMG Porsche 991 GT3 Center Section is a direct bolt on replacement exhaust system. Handcrafted out of US Made T304 Stainless steel and meticulously TIG welded to aerospace specifications with greater precision, the system is lighter than the factory system and surpasses the factory piece in terms of quality and performance.

Weighing in at 7 pounds, the GMG exhaust system is 30 percent lighter than the factory system and features a proprietary megaphone design, which improves sound and performance throughout the entire rev range. The GMG center section produces deep aggressive exhaust notes at lowers revs & exotic high pitched exhaust notes at higher revs.

GMG's Center Section is 100% emissions legal and will not void the factory warranty. It's a complete bolt-on upgrade, utilizing factory exhaust bracket locations, which will bolt up to both the stock primary mufflers while retaining the factory sport exhaust option. Hit the Sport button and listen to the beautiful exhaust note.

The GMG Porsche 991 GT3 exhaust is handcrafted in the USA out of T304 stainless steel and is meticulously TIG welded to aerospace specifications with great precision. Using stainless steel packing material in the mufflers, the GMG exhaust is designed to withstand extreme exhaust temperatures and high intensity acoustic pressures. This is one of the key advantages of the GMG exhaust system since many competitor exhaust systems use fiberglass packing instead to lower costs, and they are prone to rapid deterioration. The exhaust system is a complete drop-in upgrade using existing factory hangers and is 50 states emissions legal.

991 GT3 GMG Exhaust Features

  • Horsepower and torque increased throughout power band
  • Produces deep aggressive, exhaust notes at lowers revs & exotic high pitched exhaust notes at higher revs, similar to the GT3 Cup and RSR race cars
  • US Made T304 stainless tubing
  • Meticulously TIG welded throughout to aerospace specifications
  • Factory primary mufflers, catalyst, and exhaust flaps are all retained
  • Direct bolt-on replacement, no removal of bumper required
  • Sport button remains fully functional for everyday use
  • 30% Weight Reduction over Stock
  • Sport Button Remains Fully Functional
  • Hand built to order with individually serialized laser etched badges



The GMG World Challenge systems offer an amazing sound from the Flat Six engines while not having any harmonics or drone in the cabin when cruising around under partial throttle or at highway speeds, blue tooth can be fully utilized with no interference or unwanted noise.



Vehicle Model Years     Part No.
991 GT3 2011-14     GMG.991GT3.CTREXH



Installation for the 991 GT3 Exhaust system from GMG is classified as moderate hard. Professional installation is highly recommended for this product.


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