Enthusiasts spend time choosing how their cars look, feel, and respond. Exhaust sound deserves the same personal attention. Sometimes you want the engine's character to take center stage. At other moments, you want a more restrained setting or the familiar behavior of the original system.

SST Spezialsteuergeräte gives owners of compatible vehicles another way to approach that choice. Its exhaust valve controllers work with the vehicle's existing valve hardware, offering application-specific settings that change how those valves operate.

At Extreme Power House, the SST collection includes controllers for a wide range of vehicles, from MINI and Volkswagen performance models to Porsche, McLaren, BMW, Mercedes-Benz, and more. The available features vary by controller, creating options for different exhaust configurations and preferences.

For your next exhaust-related upgrade, consider the settings you want at your fingertips.

Think About How You Want to Use the Controls

An exhaust system's sound is part of its appeal, but the way you interact with that system matters too.

Think about what you would like to change. Do you want a direct choice of valve position? Would you prefer the controller to remember your last selection? Is retaining access to the factory control strategy important to you?

Those preferences give the purchase a purpose. Rather than choosing hardware solely around a louder sound, you can look for the controls that best suit your expectations.

It is also worth reviewing the exhaust already installed on your vehicle. A valve controller needs compatible valves and actuators to operate. Start with that existing equipment, then compare the functions offered by the correct SST application.

MINI Cooper S and JCW: Explore the Space Between Open and Closed

XPH lists the SST controller for compatible MINI Cooper S and JCW F54–F57/F60 applications, part number AKS.BMW1-MIN.

The product description includes Sport mode with the valves open, Comfort mode with them closed, and Factory mode that returns operation to the original strategy. It also describes a Freestyle mode with 50 percent valve opening and a memory function for the last selection or a preset startup mode.

Specific listed examples include F54 Clubman JCW models from 2016–2024 and F60 Countryman JCW models from 2017–2023. Cooper S applications have their own fitment details, and XPH specifically asks buyers to confirm that the exhaust has a valve. 

For a MINI owner, the appeal is having more than one way to enjoy the existing exhaust. Review the exact application and available settings to find the configuration that matches your car.

Volkswagen Golf 7 R: DELUXE Adds Another Layer of Information

The SST DELUXE controller for the Volkswagen Golf 7 R, part number AKS.GO8R-GO7, provides an example of the additional functions offered on a DELUXE application.

XPH lists it for supported Golf 7 R AU/5G models from 2013–2020 and explicitly excludes the Golf 7 R Variant. The unit controls two exhaust valves and installs in the left side of the driver's footwell.

Alongside Sport, Comfort, and Factory modes, the description includes configurable startup memory. Its DELUXE diagnostics monitor valve operation for issues such as sluggish movement or jamming. 

For an owner comparing SST versions, these details give you something concrete to evaluate. Consider whether your priority is valve control alone or whether the additional monitoring also matters to your setup.

The right choice depends on the functions you value and the exact vehicle application.

Porsche Macan: Match the Controller to the Exhaust Configuration

Porsche's Macan range illustrates why factory exhaust equipment matters when selecting a controller.

XPH offers the SST AKS.i30N-PMA controller for the 195 kW Macan 95B without Sport Exhaust. The detailed application information specifies 2021–2024 Macan and 2022–2024 Macan T models.

This unit operates one exhaust valve. Its listed functions include Sport, Comfort, Factory, and 50 percent Freestyle settings, plus a choice between remembering the last mode and using a default startup setting.

The description specifies a compact IP66 housing and installation in the trunk or behind the bumper. For a Macan owner, the first step is establishing the exact exhaust configuration. The catalog carries separate listings for other Macan arrangements, so selecting by model name alone can miss an essential distinction.

Once the application is matched, you can focus on the operating modes you want to use.

McLaren: A Compact Addition to the Exhaust Experience

XPH also lists the SST AKS.MCL2-1 exhaust valve controller for supported McLaren applications.

The product page includes models such as the 600LT, GT, 720S, 750S, and 765LT within its stated application range. It describes control of two exhaust valves, with Sport, Comfort, Factory, and 50 percent Freestyle modes.

The compact controller is designed for engine-compartment installation. XPH specifies an IP66 housing and thermal insulation for cables near high-temperature areas. The unit arrives pre-assembled and pre-programmed with illustrated instructions.

For an owner who already enjoys the car's exhaust hardware, the attraction is the ability to approach its behavior more deliberately.

Review the specific model and exhaust compatibility with XPH before ordering, especially if the vehicle already has an aftermarket system.

Choose Around the Features You Will Actually Use

These examples show why SST shopping starts with the individual product. Valve count, mounting location, operating modes, and diagnostic functions can differ.

Prepare your vehicle's model, year, chassis, and exhaust details before comparing options. Include any changes to the mufflers, valves, or actuators. Review the listing's stated use restrictions and installation instructions as part of that decision.

A clear description of your existing setup helps XPH narrow the available choices.

Find Your SST Controller at Extreme Power House

Exhaust character is part of what makes a performance vehicle enjoyable. SST offers a focused way to personalize valve behavior on supported applications, with features that extend from selectable modes to memory and diagnostics on certain versions.

Explore the SST Spezialsteuergeräte collection at Extreme Power House to compare current applications and controller options.

Bring XPH your vehicle details and preferred features, and find the SST controller that makes exhaust sound part of your setup.