At Dundon, we test our products endlessly to ensure the utmost quality. And over time, we found the factory muffler couldn’t keep up with the added performance our Headers provide. We set out to fix that. The result — Dundon’s GT3 Lifetime Center Muffler....

Available in OEM lower flow tube size for stock muffler or 3" lower flow tube size for use with Dundon Lifetime Mufflers 3" Lower Flow Path Offers 44% improvement in flow over stock 20% reduction in pressure drop over stock Use with Loud Muffler...

GT cars come from the factory with fixed-length sway bar end links. When you change the ride height without adjustable links, you risk a "non-neutral" suspension due to sway bar preload and compromised geometry. When one side sits higher, the sway bar twists to...

For a long time you had to sacrifice your street drivability if you wanted to upgrade to a motorsports damper. No longer! Our Dundon-spec MCS 3-Way dampers improve your GT3's already formidable handling, while adding adjustability and forgiveness. We help make the car easier...

Ferodo DS1.11 for 991 GT3 Steel and PCCB Calipers

This is the most complete, well-rounded power package around for the 991.2 GT3 4.0L. With careful consideration and many design, engineering and tuning hours, we have extracted impressive power, torque and drive-ability out of the 991.2 GT3 4.0L engine. The best part: no compromises. ...

Complete set (of 6) rear "dog bone" control arms for your 991 GT3, GT3RS or 992 GT3. Remove rubber from the rear suspension for better feel, less slop, and more grip!

1. Increased Negative Camber Our LCA's are slightly longer, and feature high-grade, extended length studs. This design allows for a taller shim stack to achieve more negative camber than what is available from the factory Porsche part. 2. Improved Handling and Grip Our LCAs...