Exhaust System / Air Intake Assembly / Turbocharger Kit
Banks Power 48997-B Monster 5-Inch DPF-Back Exhaust System 2020-2021 GM Duramax L5P
Banks Power 48997 Monster Exhaust System 5-Inch Single Exit Chrome Tip Duramax L5P
What Is an Exhaust System / Air Intake Assembly / Turbocharger Kit?
A turbocharger kit is one of the most comprehensive and impactful performance upgrades available for any engine. Rather than swapping out a single part, these complete system kits bring together the exhaust side, the air intake assembly, and the forced induction hardware into a cohesive, engineered package. Every component is designed to work in harmony — from the turbine housing that captures spent exhaust gases, to the intake piping that feeds freshly compressed air back into the engine's cylinders.
At the heart of the system, the turbocharger itself is an exhaust-driven compressor. Exhaust gases spin a turbine wheel at extremely high speeds, which drives a compressor wheel on the opposite end that forces more dense, oxygen-rich air into the intake system. Because more air means more fuel can be burned per combustion cycle, the result is a substantial increase in power output without increasing engine displacement. Complete kits typically include the turbocharger unit, intake and intercooler piping, an exhaust manifold or crossover pipe, oil feed and return lines, a wastegate for boost pressure regulation, and all necessary hardware — everything needed to transform a naturally aspirated engine into a turbocharged one.
Why the Integrated Approach Matters
Sourcing a turbo, intake, and exhaust components separately and hoping they work together is a recipe for mismatched performance and installation headaches. A properly engineered turbocharger kit eliminates the guesswork. The intake assembly is sized to flow efficiently into the compressor inlet, the exhaust routing is optimized to minimize backpressure and turbo lag, and the boost control system is calibrated for the specific engine application. This holistic design approach results in better throttle response, lower exhaust gas temperatures (EGTs), improved fuel efficiency, and more predictable power delivery across the RPM range.
These kits are particularly popular among diesel truck owners, where forced induction plays a critical role in maximizing both towing torque and fuel economy. Turbocharged diesel engines benefit especially from increased torque output at low engine speeds, making them far more capable when hauling heavy loads. However, well-engineered turbocharger kits exist for gas-powered applications as well, spanning everything from classic V8 muscle cars to modern sport compacts.
Key Considerations When Shopping
- Engine compatibility: Turbocharger kits are highly application-specific. Always verify fitment by engine family, displacement, and vehicle year/make/model.
- Power goals: The size of the turbocharger determines the boost range and power output. Match the compressor map to your target horsepower, not just the largest available option.
- Supporting modifications: Proper ECU tuning is essential for safe operation under boost. Fuel system upgrades may also be required to support the increased airflow.
- Complete vs. component kits: Some kits include every bracket, hose, and gasket needed; others assume you already have certain items. Read the included parts list carefully before purchasing.
- Installation complexity: While many kits are designed for professional installation, some manufacturers engineer their systems for straightforward DIY assembly with standard hand tools.
Top Brands in Turbocharger Kits
Banks Power is one of the most respected names in complete turbocharger systems for both gas and diesel applications. Founded by Gale Banks Engineering, the company brings decades of dynamometer testing and on-road development to every kit. Banks engineers the entire intake-to-exhaust system as a unit rather than designing isolated components, resulting in packages that deliver measurable gains in power, torque, and efficiency straight out of the box.