All Silencers / Mufflers

Porsche 986 Boxster SOUL Valved Muffler Bypass Conversion.

Transform the sound and character of your Porsche 986 Boxster (1997–2004) with SOUL’s Valved Muffler Bypass Conversion. These direct bolt-on pipes replace the factory exhaust section, delivering a refined OEM note with valves closed and an aggressive, CUP car–inspired roar with valves open. By default, the valves remain closed at startup for a smooth, neighbor-friendly warm-up, and with a press of a button you unleash the unmistakable flat-six tone.

•  Fits all Porsche 986 Boxster models (1997 – 2004)
•  Valves closed on startup for a quiet, drone-free OEM experience
•  Remote valve control included, with compatibility for factory HomeLink buttons (if equipped)
•  Designed and hand-built in-house at SOUL’s Willow Grove, PA facility
•  Backed by SOUL Performance Products’ Lifetime Warranty for both street and track use


DEVELOPMENT:
SOUL engineered this system to offer the flexibility of two exhaust personalities in one. With valves closed, it’s quiet and refined—perfect for everyday driving or early morning startups. Open the valves, and the mufflers are bypassed to create a raw, motorsport-inspired soundtrack, all while minimizing drone.

SOUND:
Valves closed, your Boxster retains its stock tone. Open them, and exhaust gases flow directly through the bypass tubes, producing an aggressive bark and thrilling flat-six roar that transforms the driving experience.

CONSTRUCTION:
Each system is fabricated in-house using brand new OEM Porsche muffler piping and high-quality, application-specific valves. Exhausts are built in precision aluminium fixtures to guarantee fitment, rigorously tested, and foam-packed for safe delivery.

BOLT ON AND GO:
The design allows for straightforward installation with no cutting or modifications. Simply bolt on and enjoy the ability to switch between OEM refinement and track-day aggression with the included remote valve controller.

LIFETIME WARRANTY:
The design allows for straightforward installation with no cutting or modifications. Simply bolt on and enjoy the ability to switch between OEM refinement and track-day aggression with the included remote valve controller.

Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

POR.986.VMBC

The product you are viewing cross references to these numbers

Porsche 986 Boxster 2000-2004 SOUL Street Exhaust Package

The SOUL 986 Street Exhaust Package upgrades your factory system with a precision-engineered header and exhaust setup that boosts power while delivering an aggressive yet refined Porsche sound. Premium high-flow catalytic converters ensure clean performance without triggering check engine lights.

•  Compatible with all Porsche 986 Boxster models (2000–2004)
•  Backed by SOUL Performance Products’ Lifetime Warranty for both street and track use

DEVELOPMENT:
The Porsche 986 Boxster offers excellent performance potential but suffers from a restrictive factory exhaust. The stock headers use oversized catalytic converters, thin flanges, and crushed primary tubing that limit flow, while the OEM exhaust adds a secondary set of converters that further choke power. The SOUL 986 Street Exhaust Package addresses all of these weak points with a complete header and cat-back system engineered to work in harmony. Designed for performance and sound balance, the system boosts excitement without introducing unwanted drone—SOUL mufflers keep the tone refined during partial throttle, even when paired with aftermarket catless headers. No valves are needed; the result is a system that’s loud when you want it to be, yet comfortably reserved around town.

CONSTRUCTION:
Our headers are crafted from premium T304L stainless steel and engineered for maximum performance. With port-matched flanges, smooth-radius primary tubing, and optimized collectors, they deliver improved exhaust flow and noticeable power gains. Each set is mandrel-bent, rigorously inspected, and fitted with mufflers featuring reinforced casings for long-lasting durability. Merge spikes further enhance flow efficiency at the collector, while a range of 321 stainless steel tip styles and finishes—or fully customized options—let you tailor the perfect look for your Porsche.

BOLT ON AND GO:
Every exhaust component undergoes strict quality checks and is test-fitted in a fixture to guarantee precise alignment. Each system is foam-packed for safe delivery and comes complete with new high-grade hardware for the header-to-exhaust flanges. Detailed installation instructions are also included for a smooth, hassle-free setup.

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.

NOTE:
+ This package is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for closed course competition use only
+ Trimming of the inner fender liner and exhaust heat shield is required on all vehicles and headlight auto leveling sensor may need to be disabled / removed and rerouting of brake hard line may be necessary to protect from heat – as such we recommend professional installation. Contact us if you need a dealer / installer recommendation.

Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

POR.9862.STPKG

The product you are viewing cross references to these numbers

Switch set for sound valves.



Fits:
All Porsche models with vacuum operated valvetronic exhaust systems

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9996001111

The product you are viewing cross references to these numbers