A rewarding performance build gives you something to appreciate every time you drive. It might be the sound as the engine climbs through the rev range, the appearance of the exhaust tips, or the satisfaction of fitting hardware that supports your plans for the car.

Active Autowerke offers several ways to bring those details into focus.

At Extreme Power House, the selection includes exhaust systems, midpipes, charge pipes, filters, and other performance products for supported applications. Modern BMW M cars sit alongside earlier generations, with Toyota Supra options adding another direction for enthusiasts to explore.

That variety makes the brand worth revisiting as your project develops. Your next purchase might transform the soundtrack, address a section of the charge-air system, or introduce a smaller upgrade to a car you intend to keep enjoying for years.

Shape the Sound With an Equal Length Midpipe

Exhaust character involves more than volume. Tone, rasp, and the way the sound develops as engine speed rises can matter just as much.

For the BMW G80 M3 and G82 M4, XPH offers the Active Autowerke Gen 2 Signature Equal Length Mid-Pipe. The product combines Active’s equal length layout with specially developed resonators intended to reduce rasp, buzzing around 2,000 rpm, and cold-start rattle.

The listing describes 304 stainless steel construction and a design intended to produce a smoother sound at higher revs. It also recommends the resonated version for setups using aftermarket downpipes.

For an owner comparing exhaust upgrades, this puts the focus on the quality of the soundtrack. Consider which characteristics you want to hear more clearly and which you would like to soften.

The existing exhaust combination matters. Listen to examples with hardware close to your own, including the downpipes and rear section, before choosing a configuration.

Installation also deserves planning: the product description calls for two cuts in the factory midpipe and uses factory-style connections. Review the complete arrangement with your installer.

Bring Equal Length Character to a Performance SUV

Active’s exhaust range also reaches BMW’s S58-powered SUVs.

XPH lists the Active Autowerke X3M/X4M Signature Equal Length Midpipe, 11-121G2, with a Gen 2 design that brings the brand’s resonator development to these applications.

The description focuses on reducing unwanted rasp and buzzing while maintaining exhaust presence. It also discusses resonated configurations for vehicles fitted with aftermarket downpipes.

For an X3M or X4M owner, that offers another way to personalize a vehicle that serves several roles. The same SUV may handle the weekday commute, longer trips, and the roads you choose simply because you enjoy driving.

Use those different experiences to guide the purchase. A satisfying exhaust should suit the time you spend inside the vehicle as well as the sound heard from outside.

With the right configuration, the midpipe can become a defining part of the SUV’s character. Match it to the exact vehicle and existing exhaust before planning the installation.

M340i and M440i: Explore a Valved Rear Exhaust

For some builds, the rear exhaust section is the part you most want to change.

XPH offers the Active Autowerke G2X M340i/M440i Valved Rear Axle-Back Exhaust, described as a 304 stainless steel system that reuses the factory exhaust valve actuators.

Its design combines a deeper sound with quad exhaust tips, giving the purchase both an acoustic and a visual role. The factory valve control remains part of the arrangement.

For owners who enjoy the B58-powered BMW’s everyday usability, this provides a focused upgrade to evaluate. You can consider the rear section around the sound and appearance you want while reviewing its compatibility with the rest of the installed system.

The listing states that fitting the rear section requires cutting the stock midpipes, with connecting hardware supplied. Include that work in the installation plan.

Choose the tip option with the rear bumper and diffuser in mind. A well-considered finish can make the exhaust feel integrated with the wider exterior build.

Toyota Supra: Sound and Finish in One Package

Toyota Supra owners have a dedicated Active Autowerke exhaust option at XPH, too.

The Active Autowerke Supra Performance Cat-Back Exhaust System is listed for the Toyota Supra MKV, with brushed 304 stainless steel construction and a 3.5-inch midpipe.

The system reuses the factory valve actuator and offers adjustable 100mm double-walled tips in brushed stainless, black stainless, or carbon fiber finishes.

Those choices let you evaluate the upgrade from two perspectives. The exhaust layout shapes the sound, while the tips become a visible part of the rear view.

For a restrained exterior, a darker finish may suit the surrounding trim. Brushed stainless can provide a brighter contrast, while carbon fiber can continue a material theme already used elsewhere.

Confirm the exact engine, model year, and factory exhaust configuration against the product requirements before ordering. Then compare sound examples that reflect your own downpipe and overall setup.

The appeal is a package you can appreciate when driving and when looking back at the car.

B58 Charge Piping: Give Supporting Hardware a Role

The next upgrade may belong under the hood.

XPH offers the Active Autowerke G-Chassis Charge Pipe, 15-007, for specified B58-powered BMW M340i, M440i, and Toyota A90 Supra applications.

The listing identifies aluminum construction, a black powder-coated finish, and a CNC-machined throttle-body connection. Silicone couplers and stainless clamps are included, along with provisions for two water/methanol injection nozzles.

For an owner reviewing supporting hardware, the product provides a replacement for the specified factory plastic charge pipe. Its value should be considered around the component being replaced and the broader engine setup.

There are important ordering details: XPH’s listing excludes xDrive models, and the factory throttle clip and O-ring are not included. Check the current product requirements and your vehicle’s existing connections before purchasing.

Injection ports are provisions for a separate, properly configured system. They do not require adding injection to the build.

E9X M3: Keep Developing the S65 Experience

Active Autowerke’s selection also gives earlier BMW owners several directions to explore.

For the E9X M3, XPH lists the Performance Air Filter, 15-009, a reusable design described as using cotton filtration media and reinforced sidewalls. The product requires a production-date selection, making the correct version part of the purchase.

A filter upgrade can fit an owner who wants to retain the familiar engine-bay layout while choosing a serviceable replacement. Review the cleaning instructions and use the appropriate maintenance products.

For a different type of engine upgrade, XPH also offers the Active Autowerke E9X M3 Power Pulley Kit for the S65 V8. Its description identifies hard-coat-anodized billet 6061 aluminum construction and versions for the applicable belt arrangements.

The belt configuration is central to that choice. Match the kit to the car’s production details and existing A/C belt rather than ordering by the E9X name alone.

These options give a long-term M3 project room to develop through individual, clearly defined purchases.

Choose the Change You Want to Enjoy

Before selecting the next component, decide what you want it to contribute.

An equal length midpipe addresses exhaust character. A valved rear section combines sound with a visible change. A charge pipe serves a supporting role beneath the hood. A filter or pulley kit takes an earlier platform in another direction.

Review the exact fitment, package contents, installation requirements, and intended use for each product. Give the current hardware on the car as much attention as the part you are adding.

That approach helps each purchase feel connected to the build. You can make one change, spend time enjoying it, and decide what belongs next.

Explore Active Autowerke at Extreme Power House

From modern BMW M cars and B58-powered daily drivers to the Toyota Supra and S65-powered E9X M3, Active Autowerke offers enthusiasts several ways to continue a project.

Find the sound you want to hear, the finish you want to see, or the supporting component that fits your next stage.

Browse the Active Autowerke selection at Extreme Power House and discover your next upgrade.