Scion xB Service Kits
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What Are Performance Service Kits?
Performance service kits take the guesswork out of upgrading your vehicle by bundling everything you need into one cohesive package. Rather than sourcing individual components from multiple suppliers and hoping they work together, a properly engineered service kit delivers matched, pre-validated parts designed to function as a unified system. Whether you're chasing more horsepower, better fuel economy, improved throttle response, or a combination of all three, these kits provide a structured path to real, measurable gains.
The value of a complete kit goes beyond convenience. Each component — from the air intake through the exhaust — is sized, tuned, and tested to complement the others. Mismatched components can create bottlenecks that cancel out gains elsewhere in the system, which is exactly the problem well-engineered service kits are built to solve.
What's Inside a Performance Service Kit?
Service kits in this category span several performance disciplines, covering everything from induction and exhaust to forced induction and engine management:
- Exhaust, Air Intake & Programmer Combos: These Exhaust System / Air Intake Assembly / Computer Chip Programmer Kits bundle a high-flow air intake, a performance exhaust, and an ECU programmer or chip tuner into one package. Together, these three components address both the intake and exhaust sides of the engine while optimizing fuel and ignition maps to take full advantage of the improved airflow.
- Turbocharger Kits: For vehicles running forced induction, Exhaust System / Air Intake Assembly / Turbocharger Kits combine a turbo upgrade with supporting intake and exhaust hardware. These kits ensure the entire forced induction circuit — from cold-side intake to hot-side exhaust — is upgraded in a balanced, complementary way.
Top Brands in Performance Service Kits
Banks Power is one of the most respected names in diesel and gas performance upgrades. Banks Power, a division of Gale Banks Engineering, is a leader in high-performance upgrades for diesel and gas-powered vehicles, specializing in advanced intake and exhaust systems, turbochargers, tuners, and intercoolers designed to maximize power, efficiency, and reliability. Unlike suppliers that assemble "grab-bag kits" from various sources, Banks manufactures to exacting specifications every product it designs — making their service kits a particularly cohesive and trustworthy choice for truck and diesel enthusiasts.
aFe Power (Advanced FLOW Engineering) brings a flow-focused philosophy to performance service kits. aFe Power is a leading designer and manufacturer of high-performance automotive upgrade systems, offering cold air intake systems, exhaust systems, intercoolers, turbochargers, and electronic programmers — each engineered to maximize airflow and improve power, torque, and efficiency. Their kits cover an exceptionally wide range of applications, from diesel trucks running Cummins, Powerstroke, and Duramax engines to gas-powered vehicles including BMWs, Porsches, and sport compacts , making aFe one of the most versatile brands in this space.
APR is the go-to brand for European performance vehicle enthusiasts. APR is the global leader in performance aftermarket products for Volkswagen, Audi, Seat, Skoda, Porsche, and other vehicles, developing hardware, software, calibration and data-logging tools for engine and transmission controllers, including intakes, exhaust systems, intercoolers, and turbocharger systems. The APR Turbo Pack, for example, transforms a vehicle with a complete turbocharger upgrade alongside supporting hardware including intake, intercooler, exhaust, ignition, and tuning — built for drivers aiming for the highest power levels and a full step beyond factory turbo capabilities.
Choosing the Right Service Kit
The best kit for your build depends on your vehicle platform, engine type, and performance goals. Diesel truck owners will find Banks Power and aFe both offer comprehensive bundles suited to towing and performance driving alike. Owners of Volkswagen Group vehicles — GTIs, Audis, Porsches — will want to explore APR's tightly integrated hardware-and-software approach. In every case, a service kit's greatest strength is the engineering that went into making all its parts work together from day one.