$595.00 USD
$595.00 USD














Shed 35 pounds and reduce heat soak while encouraging an exciting exhaust note from your GT3 while retaining valve functionality
+ Fits all Porsche 997 and 997.2 GT3 / GT3 RS vehicles 2006-2011
+ Weighs 35.4 lbs / 16 kg less than factory exhaust components (44.9 lbs vs 9.5 lbs)
+ Designed and built in-house at our Willow Grove, PA facility
+ All Soul Performance Products components are backed by our Lifetime Warranty for both street and track use
DEVELOPMENT AND TESTING: Deleting the side mufflers yields huge weight savings, helps with heat management in the engine bay and keeps the rear tires cooler. The hole leading into the secondary pipe is enlarged to equalize pressure in the center muffler – promoting longevity. Flex bellows allow for easy installation and increase durability under extreme racing conditions in a similar manner to OEM. Large 3″ diameter primary piping increases flow. High quality valves operate like factory.
SOUND: The sound is smoother during the transition between open and closed versus a center muffler bypass. Valves closed tone is increased moderately while still comfortable with factory center muffler in place. Open the valves to reveal a refined, exotic pitch befitting of the high performance GT3 engine.
CONSTRUCTION: Each set is made from mandrel bent T304L 3″ .065″ wall stainless steel tubing and high quality flex bellows for maximum durability.
BOLT ON AND GO: Each exhaust is tested in a fixture to ensure perfect fitment and then foam packed to arrive in perfect condition, ready to install with no cutting or modifying required.
LIFETIME WARRANTY: Enjoy your SOUL exhaust components with confidence on both the street and track as the valves and entire exhaust are covered by a Lifetime Warranty! Our team will quickly work with you to resolve any issues or answer any questions that you may have.
NOTE: O2 bungs can be added (to work with aftermarket headers that relocate the bungs to the SMB). We do not add them by default in the interest of lightness. Contact us for this option.
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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.