Soul Performance Valved Muffler Bypass Conversion for 986 Porsche Boxster



Valved Muffler Bypass Conversion

1996-2004 Porsche Boxster

These items are typically not in stock and either made-to-order or special order from the manufacturer. After you order we will confirm the estimated lead time and other order details. If you have a specific deadline to receive this order please talk to us before placing your order to ensure that the manufacturer can meet your expectations.
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SKU: POR.986.VMBC Category: Vehicle: Brand:
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Soul Performance Valved Muffler Bypass Conversion for 986 Porsche Boxster

The distinctive 986 Boxster muffler bypass conversion pipes offer a seamless bolt-on installation to the factory exhaust, providing an OEM sound when the valves are closed and an exhilarating, race-inspired sound when the valves are open. The default valve orientation is closed upon startup, allowing for a refined warm-up experience. However, with a simple press of a button, an invigorating tone reminiscent of air-cooled CUP cars awaits, ready to ignite your senses.


  • Their objective was to create a cost-effective valved exhaust system that seamlessly transitioned from “Cruising Sunday” mode to “Track Day” mode with a simple press of a button. The default setting was designed to have the valves closed, ensuring a refined startup experience without disturbing the garage’s or neighboring residences’ tranquility. A key priority was to minimize drone during operation. Recognizing the opportunity provided by Porsche’s inclusion of a removable section of piping in the exhaust system, they ingeniously incorporated valved Muffler Bypass tubes in this ideal location.


  • Rest assured, when starting up your Boxster in your garage, there is no need to worry as the valves are closed by default. This ensures that the original Porsche driving characteristics and exhaust note are preserved until you choose to open the valves. Once you do, you will be greeted with an assertive bark as the mufflers are bypassed, delivering an aggressive and captivating sound experience.
  • With the valves open, the exhaust gases are directed through the dump tubes, unleashing a resounding flat-six roar.


  • Every set is meticulously crafted in-house by Soul’s skilled fabrication team, using brand-new OEM Porsche muffler piping and purpose-built valves specifically designed for the application. The valves are set to a closed mode by default, ensuring seamless integration with the vehicle’s original configuration.

Bolt-On & Go

  • Every exhaust is meticulously constructed and tested in a robust aluminum fixture with a thick gauge to prevent warping, guaranteeing a flawless fitment. To ensure its safe arrival, each exhaust is carefully foam-packed, providing maximum protection during shipping. Additionally, every set and valve controller kit undergoes rigorous quality checks before being shipped, ensuring the highest performance and reliability standards.


  • 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.


  • 1996-2004 Porsche Boxster – 986

About Soul Performance

Their mission is to provide their customers with outstanding parts, fair pricing, and quality service backed up with the best warranty in the industry. SOUL Performance was formed by a team of enthusiasts with automotive industry experience looking to do the right thing by their customers. They aim to deliver exemplary service worldwide by developing incredible sounding, proven performing components that are always ready to ship to you quickly.

Core Values

  • They believe in honesty, unwavering ethics, and transparency as they operate.
  • Their product warranty extends longer and broader than their competition.
  • They actively participate in the communities they cater to.
  • They build connections to further their ability to deliver a premium experience.
  • Their passion for cars and the automotive industry drives their business.
  • They listen to the demands of the market to meet and exceed expectations.
  • They consider both quality and pricing to deliver greater value.
  • Their success will be measured by recommendations to other potential clients.

The Ghost Icon Signifies Soul’s Commitment To Performance and Racing

  • Several SOUL team members were involved in Porsche racing – specifically 944 Cup – and had a number of mascots along the way. The ghost is an evolution of their original logos – which also aligns with the name of their company. While all SOUL components are designed to be durable and are backed by their Lifetime Warranty and industry-leading customer service, their race-focused offerings are engineered to withstand the intense conditions that come with track use and abuse. Nothing is worse than preparing for a track event only to lose time or the entire day to a broken component. Thicker brackets, extra mounting points, and back purged welds ensure longevity.

Soul’s Facility

  • Performance Products is located in a 20,000 square foot facility north of Philadelphia in Willow Grove, Pennsylvania. Their R&D area is equipped with two BendPak lifts and all the tools necessary to allow then to design, engineer, test, prototype, and fixture components. Their shipping area is set up to ensure that all components get a thorough inspection, orders ship complete with all hardware, and that products are well packed.

Manufacturing Soul

  • Performance Products is partnered with ISO 9001 Certified aerospace manufacturers, enabling them to work with technology and industrial scale, extreme precision equipment down to +/- 0.002 inches that would otherwise be beyond the limits of an exhaust manufacturer. Their capabilities include waterjet and laser cutting, tube bending, CNC machining, robotic welding and much more. They strategically deal with vendors worldwide to find appropriate components, such as high-quality HJS HD catalytic converters. Their mission is to provide the best possible results for their customers at great pricing.
The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.
Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.
We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at with any inquiries.


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