The moment an engine starts can set the tone for the entire drive. So can the sound that follows a shift, the pull through the revs, and the view of a finished exhaust beneath the rear bumper. For enthusiasts who care about those details, choosing performance parts is part of making the car their own.

At Extreme Power House, our Active Autowerke selection gives you plenty of ways to develop that experience. Explore midpipes, valved rear exhausts, catted downpipes, charge pipes, and software for a range of BMW and Toyota Supra applications.

The lineup reaches from established BMW platforms to modern S55 and S58 M cars, with options for turbocharged four-cylinder and B58-powered vehicles along the way. Whether you want a different exhaust character or a more complete performance package, Active Autowerke offers a strong place to start shopping.

Choose the Exhaust Character You Want to Hear

An exhaust upgrade is a personal decision. Some owners want a deeper note. Others want a smoother tone through the rev range, more presence under acceleration, or the flexibility of a valved rear section.

Active Autowerke’s selection gives customers different components to explore around those goals. A midpipe changes the center section of the exhaust. An axle-back addresses the rear muffler and outlets. A downpipe sits closer to the turbocharger and introduces its own flow and sound considerations.

The final result comes from the combination. Your factory or aftermarket downpipes, midpipe configuration, resonators, and rear exhaust all contribute to what you hear.

That makes shopping by system a useful approach. You can replace one section first or plan several compatible components together, selecting the parts around the character you want from the car.

At XPH, you can compare those choices within the Active Autowerke range and find an upgrade that fits the direction of your build.

S55 M Cars: Explore Single and Equal-Length Midpipes

The S55-powered BMW M cars are central to Active Autowerke’s midpipe selection.

Our catalog includes single midpipes for the F80 M3 and F82 M4, along with a dedicated F87 M2 Competition midpipe. Selected listings include Active Autowerke’s corresponding brace as part of the package.

Customers can also explore the Gen 2 equal-length midpipe for listed F87 M2 Competition/M2 CS, F80 M3, and F82 M4 applications.

The equal-length arrangement is designed to balance the exhaust paths before they merge, with the aim of producing a smoother exhaust tone. For owners who want to change the sound quality of their S55, that makes it worth comparing with a single-pipe configuration.

Connecting pipes and resonator choices also matter. Active Autowerke recommends the resonated arrangement for specified setups using straight-through downpipes to help manage rasp and cold-start sound.

Select the system around the components already on your car, then choose the configuration that suits your preferences.

G80 M3 and G82 M4: Several Ways to Develop the S58 Sound

For BMW G80 M3 and G82 M4 owners, our Active Autowerke range includes multiple midpipe approaches.

You can explore single-pipe, Gen 2 equal-length, and Signature X-pipe configurations. Each offers a different arrangement in the center section, giving customers more than one route to a new exhaust character.

That variety is appealing when sound is a major part of your purchase decision. Compare clips of the relevant system with similar downpipes and a similar rear exhaust so you can hear a combination that resembles your own plans.

Our selection also includes a valved rear axle-back exhaust for the G80/G82 platform. This gives owners another area to upgrade as they develop the system.

For some customers, a midpipe is the first step. Others may prefer to begin with the rear section or plan the two together. Active Autowerke provides choices for each approach, with compatibility and installation details available on the individual listings.

G87 M2: A Dedicated Selection for the Compact M Car

The G87 M2 deserves parts selected around its own exhaust layout.

At XPH, you can explore the Active Autowerke G87 Signature Single Mid-Pipe with G87-Brace and the G87 Gen 2 Signature Equal Length Mid-Pipe.

These options allow M2 owners to compare different center-section designs rather than assuming the M3 or M4 arrangement is interchangeable.

The single midpipe is positioned around a deeper, more assertive exhaust character, while the equal-length product offers another approach to shaping the S58’s tone.

For a compact performance coupe, the exhaust can become a defining part of the experience. Choose the sound direction you want, then review the connecting components and installation requirements for your exact setup.

The G87 single-midpipe listing specifies race and off-road use, so include the product’s intended-use notes in your purchase decision.

X3 M and X4 M: Bring More Character to the Performance SUV

Active Autowerke’s exhaust options extend to the BMW F97 X3 M and F98 X4 M.

Our selection includes Signature Single and Signature Equal Length midpipes for these platforms. The range also represents rear valved exhaust and catted downpipe options for customers developing a more extensive system.

That gives SUV owners the same opportunity to think carefully about exhaust character as coupe and sedan enthusiasts.

You might want a focused change to the middle section while retaining the rest of the factory arrangement. Or you may be planning a coordinated package with several components. Either way, the correct vehicle-specific connections help determine the right purchase.

If your X3 M or X4 M already has aftermarket downpipes, compare the recommended resonator configuration as part of the plan. The complete combination is what determines how the finished system sounds.

Catted Downpipes for BMW Turbocharged Builds

Active Autowerke’s downpipe range offers options across several BMW engines.

Our selection includes N55 applications for the M235i, 335i, 435i, and N55-powered F87 M2, along with separate products for specified N20, B46/B48, B58, S55, and S58 vehicles.

Selected products incorporate GESI high-flow catalytic converters, allowing customers to explore a catted configuration while upgrading the exhaust path.

For the S55 F87 M2 Competition, F80 M3, and F82/F83 M4, there are dedicated downpipe listings. For newer M cars, the selection includes a separate S58 downpipe application for the G80 M3, G82 M4, and G87 M2.

The catalog also covers selected M5, M8, X5 M, and X6 M catted downpipe applications, giving V8 owners another direction to explore.

Choose by the exact engine, chassis, production range, and product version. Catalytic-converter options and use restrictions belong to the individual listing, so review those details alongside the hardware specifications.

Toyota Supra: Dedicated Products for 3.0L and 2.0L Models

Toyota Supra enthusiasts have their own options in the Active Autowerke selection.

For listed 2020–2024 A90/A91 Supra 3.0L B58 applications, the Signature Catted Downpipe, part 11-564, uses stainless steel piping that transitions from 4.5 inches to 3.5 inches. It includes a flex joint and a high-flow catalytic converter, with compatibility designed around the corresponding factory exhaust connection.

For owners of the four-cylinder car, we also offer a separate Supra 2.0L B46 catted downpipe.

The distinction is useful when shopping. Both vehicles carry the Supra name, but their engines and exhaust connections require different products.

If you are planning a more complete project, our selection also includes B58 Supra software tuning and a compatible G-chassis/A90 charge pipe listing.

That gives Supra owners opportunities to consider the exhaust, boost hardware, and calibration as connected parts of the build.

Charge Pipes Add Supporting Hardware to the Plan

A performance project includes more than the exhaust note.

Active Autowerke’s 15-007 charge pipe covers listed BMW M340i, M440i, and Toyota A90 Supra B58 applications. It uses aluminum construction, a CNC-machined throttle-body connection, and a black powder-coated finish.

The package includes silicone couplers and stainless clamps, and the design retains the corresponding factory O-ring seal. It also provides connections for an appropriately specified water/methanol injection setup.

Our selection includes separate F-chassis N55 charge pipes for specified 335i, 435i, M235i, and M2 applications, plus an E82/E9X N55 charge pipe listing.

These products give customers a way to address the hardware carrying pressurized air as the project develops. Select the component that fits your engine and existing equipment, then incorporate it into the broader modification plan.

Established BMWs Still Have Plenty to Explore

Active Autowerke’s range reaches beyond the newest turbocharged cars.

For E9X M3 owners, our selection includes a Signature X-pipe with high-flow catalytic converters, giving the naturally aspirated V8 platform a dedicated exhaust option.

Customers with N51/N52-powered E9X 328i/330i and E82 128i vehicles can explore Active Autowerke performance software. Separate software listings also cover specified E60 528i and 530i N52 applications.

That breadth matters for owners who intend to keep enjoying an established car. You can plan upgrades around the engine you already have and choose parts that serve the character you value.

A naturally aspirated BMW and a modern turbocharged M car call for different hardware. Active Autowerke gives both groups products to explore at XPH.

Plan the Combination Before Choosing the Parts

The most satisfying purchase is one that fits the car and the result you want.

For an exhaust project, start with the current downpipes, midpipe, and rear section. Confirm the chassis and engine, then review the connecting pipes, brace, resonators, and installation steps required for the new component.

Selected installations involve cutting the factory exhaust, while some configurations require specific connecting parts. Review the exact listing before scheduling the work.

For software, confirm the supported vehicle, ECU requirements, and installed hardware. For charge pipes, match the engine and connection arrangement.

These details help turn a collection of parts into a coherent build. You can make each purchase with a clear understanding of what it adds and how it connects to the next step.

Shop Active Autowerke at Extreme Power House

From the sound of an equal-length midpipe to the finishing touch of a valved rear exhaust, Active Autowerke offers several ways to make your vehicle more enjoyable.

At Extreme Power House, you can explore products for BMW M cars, non-M BMW platforms, and Toyota Supra applications in one place. Compare midpipes, catted downpipes, rear exhausts, charge pipes, and software around the vehicle you own.

Choose the sound, hardware, and performance direction that suit your plans, and make your next upgrade something you look forward to every time you start the car.

Shop Active Autowerke Exhausts, Midpipes, and Performance Upgrades at Extreme Power House