A performance build rarely happens in one step.

An intake can be the starting point. A turbo inlet might follow. Then comes an intercooler, exhaust upgrade, fueling, suspension, or eventually a larger turbocharger.

CTS Turbo has built its product range around this progression, developing application-specific hardware that allows enthusiasts to address different areas of a vehicle as their goals evolve.

Originally focused heavily on Volkswagen and Audi performance, CTS Turbo has expanded its engineering and product development across BMW, Toyota, MINI, Mercedes-Benz, Nissan, Ford, and other modern enthusiast platforms.

At XPH, the current CTS Turbo catalog reflects that expansion, with products ranging from intake systems and turbochargers to exhaust components, fueling hardware, suspension, mounts, and chassis components.

It Starts With the Airflow

Turbocharged engines are heavily dependent on how efficiently air can move through the system.

CTS Turbo offers intake systems, turbo inlet pipes, intake filters, intercoolers, charge-air components, and other hardware designed around specific engine platforms.

Current XPH listings include BMW B46/B48 and B58 intake systems, S58 G8X M2/M3/M4 intakes, Audi RS3 5-inch intakes, Toyota GR Corolla intake systems, and multiple Volkswagen MQB applications.

These products provide different entry points into a build depending on the vehicle and the owner's goals.

BMW B46, B48, and B58 Applications

BMW's modern turbocharged four- and six-cylinder engines are well represented in the CTS Turbo catalog.

For B46/B48-powered vehicles, CTS offers intake systems and turbo inlet pipes for applications such as the F2X/F3X 230i, 330i, and 430i, along with G-series 230i, 330i, and 430i models.

B58 owners have additional options, including:

• F-series M140i, M240i, 340i, and 440i turbo inlet hardware
• BMW G01/G02 X3/X4 M40i intake systems
• B58 Gen 1 Stage 2+ hybrid turbochargers
• B58 port-injection kits
• Turbo heat shields
• Supporting intake and airflow components

This makes it possible to develop the B58's airflow and fueling systems alongside its turbocharger rather than treating each upgrade independently.

Supporting the S58 M Cars

CTS Turbo also offers dedicated hardware for BMW's S58-powered vehicles.

The current catalog includes an S58 intake system for the G8X M2/M3/M4, high-flow turbo inlets intended for hybrid-turbo applications, single midpipes for G80/G82/G83 M3/M4 and F97/F98 X3M/X4M, crossover exhaust hardware, and an S58 skid plate.

These products address different stages of a performance build, from intake airflow to exhaust flow and underbody protection.

Turbocharger Upgrades When the Factory Unit Is No Longer Enough

There eventually comes a point where bolt-on airflow upgrades are no longer the main limitation.

CTS Turbo's turbocharger program provides larger options for enthusiasts moving toward higher power targets.

The current XPH catalog includes the BOSS800 Hybrid Turbocharger for B9 Audi S4, S5, and SQ5 applications, a B58 Gen 1 Stage 2+ Hybrid Turbo, and the JB-640RS Journal Bearing Hybrid Turbocharger for MQB applications.

CTS also offers BOSS500 and BOSS600 turbo kits for B8/B8.5 Audi 2.0TFSI applications.

The important distinction is that these are not simply larger versions of factory components. Turbocharger selection needs to account for engine displacement, supporting modifications, fueling, cooling, exhaust flow, and the intended power range.

Keeping Charge-Air Temperatures Under Control

More airflow and boost create more heat.

Intercooling therefore becomes increasingly important as a turbocharged engine moves beyond its factory configuration.

CTS Turbo offers front-mount intercooler systems across several applications, including the BMW E9X N54/N55 platform and multiple Volkswagen MQB vehicles. The catalog includes a 7.5-inch race FMIC for E9X N54/N55 applications as well as MK7/MK7.5 and MK6 Golf GTI/Golf R intercooler systems.

For a modified turbocharged engine, the intercooler is not simply another bolt-on. It is part of the system responsible for maintaining consistent intake-air temperatures as load and boost increase.

Exhaust Flow Is the Other Side of the Equation

Improving intake airflow without addressing the exhaust side can leave restrictions elsewhere in the system.

CTS Turbo's exhaust catalog includes downpipes, resonator-delete components, crossover pipes, single midpipes, turbo outlet hardware, and high-flow catalytic converters.

BMW applications include the S58 single midpipes for the G80/G82/G83 M3/M4 and F97/F98 X3M/X4M, along with the S58 crossover exhaust pipe for G80/G82 M3/M4 models.

Audi and Volkswagen applications include resonator-delete components for vehicles such as the B9/B9.5 RS5, B9 SQ5, and 4M SQ7/SQ8/RSQ8.

Fueling Becomes Critical as Power Climbs

Increasing airflow is only useful if the engine can receive enough fuel to support it.

CTS Turbo offers dedicated fueling hardware for selected Volkswagen and Audi MQB applications, including:

• Stage 3 fuel-pump upgrade kits
• Stage 3.5 fuel-pump upgrade kits
• Auxiliary low-pressure fuel systems
• 980cc multi-port injection kits
• 1300cc multi-port injection kits
• Application-specific fuel rails

CTS also offers a B58 port-injection kit for supported BMW FXX/GXX applications.

For higher-output builds, these components can become just as important as the turbocharger itself.

CTS Turbo Goes Beyond Engine Hardware

One of the more interesting aspects of the CTS catalog is how far it extends beyond traditional engine modifications.

The current XPH range includes:

• Engine mounts
• Transmission mounts and inserts
• Rear subframe inserts
• Differential carrier inserts
• Strut braces
• Sway bars
• Lowering springs
• Wheel spacers
• Skid plates
• Catch cans
• DSG paddle-shifter components

For example, CTS offers rear sway bars for several generations of Audi A4/S4/A5/S5/RS5, a front and rear sway-bar package for the B9 Q5/SQ5, and multiple engine and transmission mounting solutions.

These products address the parts of a performance vehicle that become increasingly noticeable once power and driving demands increase.

Audi and Volkswagen Remain Core to the Brand

CTS Turbo's roots are firmly established in Volkswagen and Audi performance.

The company describes itself as a performance aftermarket manufacturer specializing in late-model Volkswagen, Audi, and BMW platforms, with its product development expanding across additional makes.

The XPH catalog reflects that heritage with extensive MQB and Audi coverage.

Current products span vehicles such as the MK6/MK7/MK8 Golf GTI and Golf R, Jetta, GLI, SportWagen, Alltrack, Audi A4/S4/A5/S5, RS3, RS5, SQ5, SQ7, SQ8, RSQ8, and numerous other applications.

Expanding Beyond the Traditional European Platforms

CTS Turbo's current product development is no longer limited to Volkswagen, Audi, and BMW.

XPH carries CTS products for the Toyota GR Corolla, including a dedicated intake system, as well as Mercedes-Benz M133 A45/CLA45/GLA45 AMG intake hardware.

The brand also offers lowering springs for Tesla Model 3 and Model Y applications, showing how its catalog continues to expand into newer performance-oriented platforms.

A Build Can Grow With the Car

The real advantage of a broad aftermarket catalog is flexibility.

A daily-driven BMW might start with an intake and turbo inlet.

A tuned Audi might add an intercooler, exhaust components, and fueling hardware.

A B58 or MQB build targeting substantially higher power may eventually require a hybrid turbo, upgraded fueling, improved cooling, and drivetrain support.

CTS Turbo's range covers many of these stages, allowing enthusiasts to address the limiting component as the build develops.

Match Every Component to the Application

Performance hardware is only useful when it is correctly matched to the vehicle.

Engine code, chassis generation, model year, drivetrain, factory equipment, emissions specification, and existing modifications can all affect compatibility.

For that reason, CTS Turbo products should always be selected according to the exact application listed for each individual product rather than assuming compatibility across visually similar vehicles.

Explore CTS Turbo at XPH

At XPH, we offer a wide selection of CTS Turbo components for BMW, Audi, Volkswagen, MINI, Toyota, Mercedes-Benz, Tesla, and other supported applications.

From intake systems and turbo inlets to intercoolers, hybrid turbochargers, exhaust components, fueling systems, mounts, suspension, and chassis hardware, CTS Turbo provides components for nearly every stage of a modern performance build.

Whether you're improving a daily-driven turbo car or building toward a substantially higher power target, CTS Turbo gives you the hardware to move the project forward one component at a time.

Shop CTS Turbo at XPH: https://x-ph.com/brands/CTS-Turbo.html