Is there an easy way to reduce drone in my 718 GT4 / Spyder/ GTS?

Yes, actually, there is! You can quickly cap off your sound symposer – a built in system which pipes engine sound into your car. When running aftermarket exhaust components you may find you no longer desire this effect. We sell a sound symposer cap kit which can be installed in around an hour and is…read more

Do I need an ECU tune for my exhaust mods?

This can vary from car to car and product to product. Modern ECU’s are incredibly advanced and make the necessary adjustments automatically for proper drivability. As a rule of thumb, none of our catback exhaust systems require an ECU tune, and none of our exhaust products that include our HJS 200 cell catalytic converters require…read more

Will exhaust mods void my warranty?

There is no yes and no answer to this question. There are dealerships that will not touch or support anything that doesn’t have an OEM part number on it. There are dealerships that purchase, sell, and install all manner of aftermarket products (including SOUL exhaust systems) and even have their own dedicated performance departments. What…read more

What is PVD coating and why do you use it for your tips?

Physical vapor deposition is the process of vaporizing metal in a high vacuum environment and depositing it on electrically conductive materials yielding a microns thick finish with a very durable bond. PVD coatings vary in their function and properties as well, from coefficient of friction to hardness. Cutting tools benefit from abrasion resistance and cutting…read more

What does it mean that some of your components are made in an ISO 9001 certified facility?

Sometimes it makes sense to externally source the best possible solution for an individual component that we need for manufacturing. ISO certification is reflected in the quality of the individual components. More specifically, this means we ensure mandrel bent pipes and flanges are produced to the strictest tolerances with highly calibrated machines by highly trained…read more

How are you involved in the Porsche community?

We are first and foremost Porsche owners and enthusiasts. You will see across various social media outlets that we chime in on a consistent basis not to sell, but to educate and be active members of the community. We have even started a Facebook group called Porsche Performance/Modifications to bring together key players and enthusiasts…read more

Do you participate in any racing events / track days?

Absolutely, we are avid and well rounded motorsports enthusiasts. Our team members have experience in a variety of motorsports activities, some of which have been nationally ranked in Spec 944 and Shifter Kart racing. We have a team member currently competing in AER and Lemons endurance racing, and schedules 40+ days at various Motorsports events…read more

What is the finish on your exhausts?

We’re often asked – what exactly is the finish on your exhausts? Is it a coating? Why not just polish? Isn’t that just sand blasting? Definitely not! SOUL uses a proprietary blend of premium blasting media that was specifically arrived on after much testing to get the look that you see on our systems today.…read more

What is your warranty policy?

From day one we’ve had an industry leading Lifetime Warranty for original owners on all of our exhaust components. The HJS catalytic converters have a 3 year warranty and we will replace them once at our cost as long as no leaded / race fuel is used or no physical damage is present. We approach…read more

What’s the best way to clean my exhaust?

We highly recommend rinsing your exhaust with water every time you wash your car to remove contaminants, road grime, and salt. Salt is very corrosive and can cause surface rust if left on your exhaust, suspension, and other components. If you’re going through an automatic car wash, definitely consider an option that washes your undercarriage!…read more

How does a valve controller work?

Our valve controller kits need a 12v source of power and a ground wired up to the control unit to operate. A third wire coming off of the control unit acts as the antenna. An included cable runs from the control unit to a solenoid to supply a signal. When the key fob is pressed,…read more

Why don’t you have decibel readings for your products?

Short of measuring in a soundproofed, climate controlled environment it is impossible to have a standardized dB reading for vehicles – but even then the results would vary in the real world. There are many conditions which affect sound: distance, measuring angle, weather, sensitivity of the testing device, other sources emitting noise, and even reflection…read more

Why do you use HJS catalytic converters?

We use HJS catalytic converters due to their long standing reputation for quality, performance, and durability. They achieve the mark of preventing check engine lights and reducing noxious fumes while increasing flow. Have over 30 years of experience producing catalytic converters for aftermarket and OEM applications Use high quality foil winding designs and premium wash…read more

What does it mean to back purge a weld and why does it matter to me?

Ensuring proper penetration and proper welding is crucial to ensure the longevity of exhaust components that are welded together. Purging the metal of oxygen with an inert shielding gas can keep the weld fully protected from oxidation that could lead to corrosion. The formation of oxides usually results in black “sugaring” on the back side…read more

Are your parts legal in California?

Replacing your tips is a safe bet – anything else can get complicated. “The sale and installation of an aftermarket exhaust system remains legal in California so long as it does not exceed a sound level of 95-decibels when tested under SAE J1492 and complies with all other exhaust and safety laws and regulations. Now,…read more

Why do you show dyno results from independent / third parties?

We believe in real, repeatable results. We do not manufacturer numbers or dyno charts to mislead or inflate advertised performance gains – when you think about it, what’s stopping anyone from doing that? While we often incorporate dynos into our development process, we like to show results from third parties that are authentic and realistic…read more

What does it mean when you say you foam pack your exhausts?

The foam packing process involves two different chemicals being injected into a bag. When mixed, these chemicals turn to foam and expand. When packing, we place our components into an appropriately sized box and surround them with the bags to support and lock each part into place so that they do not touch and have…read more

Will my dealership install your parts?

When in doubt, ask your dealership! We have some dealerships that will sell and install our parts. Some will not. Every dealership is different and we encourage you not to leave it up to chance or someone’s opinion –  speak to your dealership(s) before proceeding with any modifications if you are still under warranty.…read more