$595.00 USD
$595.00 USD
















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These unique 986 Boxster muffler bypass conversion pipes easily bolt into factory exhaust for an OEM sound with valves closed and a race–inspired sound with valves open. The default valve orientation upon startup is valves closed for a refined warm-up experience and an invigorating tone reminiscent of air-cooled CUP cars is just a button press away!
+ Fits all Porsche 986 Boxsters (1997-2004)
+ Valves closed during startup for a refined, drone-free OEM experience
+ Valves controlled with included remotes or with factory HomeLink buttons (if the vehicle has them)
+ Designed and built in-house at SOUL’s Willow Grove, PA facility
+ All Soul Performance Products components are backed by a renowned Lifetime Warranty for both street and track use
DEVELOPMENT: We wanted to design a cost effective valved exhaust that would offer 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 – no shaking the garage or waking up the neighbors. Minimizing drone was also a priority. Porsche implemented a section of piping in the exhaust that can easily be unbolted and replaced – a perfect location to incorporate valved Muffler Bypass tubes!
SOUND: Don’t worry about starting up your Boxster in your garage – valves are closed by default! The OEM-driving Porsche characteristics and exhaust note are retained until you open the valves, and when you do, you’ll be treated to an aggressive bark as the mufflers are bypassed. Exhaust gases are routed out through dump tubes with valves open to give a flat–six roar.
CONSTRUCTION: Each set is made in house by our fabrication team utilizing brand new OEM Porsche muffler piping and application specific valves with a closed mode by default.
BOLT ON AND GO: Each exhaust is built and tested in a thick gauge aluminum fixture (which prevents warping) to ensure perfect fitment and then foam packed to ensure it arrives in perfect condition.. Every set and valve controller kit is rigorously quality-checked prior to shipping.
LIFETIME WARRANTY: Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to resolve any issues or answer any questions 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.