992 GT3 Exhaust: Valved Cat-Back Exhaust System (Non-EU Version)

Your 992 GT3 is an amazing car — we just think it is lacking in the sound department. Dundon Motorsports' Cat-Back Exhaust System fixes that: no CEL, no codes, no lights, just that great Dundon Sound!

Photographs are illustrative only, production parts will look different.

Technical Description

The 992 GT3 and 991.2 Speedster mark a drastic departure in exhaust configuration when compared with the last 15+ years of 911 GT3. Gone are the large side mufflers and the nearly universal center muffler. In their place the 992 platform runs a gigantic and complicated center muffler with the electronic valves built in.

Finding the best combination of weight, sound and performance is an incredibly subjective thing, so we built this system to be modular. Three sections per car, and each one has a job:

• OPF Adapters — cone-shaped pieces with v-band attachment.
• Valve Sections — these look like the 997/991 valve sections, but accept the OE Electronic Valve Actuator, so your valves operate just like stock.
• Muffler Replacement — the piece with the biggest impact on volume, drone and tone, with plenty of options to choose from.

Pick the muffler that matches how you drive: reliable, bomb-proof 321 Stainless Steel, our sublime Titanium Ultralight, or the insane Inconel 625 mini-crack pipe.

This is a system you can grow into. The cat-back is compatible with our forthcoming header system — yes, you read that correctly: buy the cat-back now, and you can add Dundon Headers later!