$595.00 USD
$595.00 USD














































Motorsport Tone • Precision Engineering
When the 991.1 generation 911 was replaced by the 991.2, Porsche added twin turbos that muted much of the drama and emotion from the exhaust note. At Valvetronic Designs, we believe sound is the foundation of driving passion—and our exhaust package restores the raw emotion your Carrera deserves.
Valves Open – Exhaust gases flow almost completely unrestricted. After passing through the turbos, the system channels them through our valved muffler, into a large X-pipe, and out the tips. The result is an extremely raw, motorsport-inspired tone that reconnects the 991.2 to Porsche’s naturally aspirated roots.
Valves Closed – Sound is routed through dual quad-chamber mufflers, significantly reducing volume for quiet cruising, early mornings, and long drives.
Upgraded Exhaust Manifolds – Regardless of configuration, our CAD-designed and CFD-tested manifolds increase exhaust pitch and bring back the signature emotion missing from the stock 3.0TT setup.
Built from Brushed T304 Stainless Steel or upgrade to Grade 5 Titanium
Vacuum-actuated valves with OEM-style control
Mandrel-bent piping for maximum exhaust flow
Precision TIG welds for strength and reliability
Beautifully finished tips to complement the 911’s rear styling
9.5 lbs lighter than the factory exhaust
100% reversible – always able to return to stock
2016 – 2019 Porsche 991.2 Carrera 3.0TT
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$595.00 USD
$595.00 USD
This product can expose you to chemicals such as lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
For a complete list of chemicals known to cause harm, visit https://www.p65warnings.ca.gov/chemicals.
Under the federal Clean Air Act (42 U.S.C. §7522(a)(3)), it is illegal to manufacture, sell, install, or use any part that defeats or alters a motor vehicle’s emission control system for use on public roads. Unless a product has received an Executive Order (EO) from the California Air Resources Board (CARB), it is not legal for use or installation on any pollution-controlled vehicle driven on public highways.
Some states have CARB-equivalent or independent emissions laws. Customers are responsible for verifying local regulations before purchasing or installing emissions-related products.
All performance, racing, or competition parts sold by this company are intended solely for off-road, closed-course, or competition use on vehicles that are never registered or used on public highways.
Kies Motorsports, LLC sells and markets these products for lawful use only. We do not condone or authorize the use of emission-control defeat devices or any modification that violates the Clean Air Act or state regulations.