$595.00 USD
$595.00 USD






















The unique valved exhaust design of this 997.1 muffler offers a sporty OEM+ sound with valves closed and a race–inspired sound with valves open. The default valve orientation upon startup is valves closed for a more refined warm-up experience, and an invigorating tone reminiscent of air-cooled CUP cars is just a button press away!
+ Fits Porsche 997.1 Carreras (2005-2008) – base vehicles and cars equipped with a valved exhaust from factory MUST use SOUL tips for proper fitment
+ Valves closed during startup for a more refined experience
+ Valves controlled with included remotes or with factory HomeLink buttons
+ Weighs 2 lbs / .9 kg less than factory exhaust components (36.6 lbs vs 38.6 lbs)
+ Designed and built in-house at our Willow Grove, PA facility
+ All Soul Performance Products are backed by a renowned Lifetime Warranty for both street and track use
DEVELOPMENT: We wanted to design a valved exhaust that would offer the ability to go from “Cruising Sunday to Track Day” at the press of a button with the default setting to be valves closed for a more refined startup experience. Following the extreme effectiveness of the mufflers used in our 987 / 981 exhausts to combat drone, we’ve applied the same design principles to a bespoke muffler for the 997 Carrera.
SOUND: The design of our exhaust channels exhaust gases through our bespoke mufflers for a sophisticated and sporty sound that is unmistakably Porsche with valves closed, and this is the default operation setting. With valves open, you’re getting a CUP–inspired straight pipe sound. With valves closed during cruising, there is no drone — even with aftermarket catalytic converters! Due to the aggressive, free–flowing nature of the valves–open mode, the volume is loud when paired with aftermarket catalytic converters or catless replacement pipes.
CONSTRUCTION: Each system is made in-house by our fabrication team from mandrel bent .060″ wall T304L stainless steel tubing, bespoke SOUL mufflers, and laser cut brackets – with well over 15 man hours invested in each set to make sure they are perfect.
BOLT ON AND GO: Each exhaust is built and tested in a thick gauge aluminum fixture (which prevents warping) to ensure perfect fitment. Every set is rigorously quality-checked prior to shipping and then foam packed to ensure they arrive in perfect condition.
LIFETIME WARRANTY: Enjoy your SOUL exhaust components for your Porsche with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to answer any questions or resolve any issues that you may have.
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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.