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Today's automotive Air Intake Systems are developed to deliver maximum filtration efficiency, maximum dust holding capacity and maximum service interval range based on engine performance and reliability requirements. It must also meet requirements of packaging, higher flow rates, lower pressure drop, lower noise, better fuel economy, increased vehicle speed/acceleration, high temperature compatibility, corrosion resistance, easy serviceability and cost effectiveness. It requires a well-behaved uniform flow with minimum temperature rise and pressure drop across the system. The air intake system should be installed such that no water ingress or water traces are found during the water wading test. These challenging requirements cannot be met effectively without a systems approach. The Air Intake System development process starts with selection of design methodology and evolution of checklists for System Design Specifications (SDS) and definition of targets.

Today's automotive exhaust systems are developed to deliver minimum noise, emissions and maximum durability based on the legislative and performance requirements. In addition, they must also meet requirements of packaging, safety, flow rates, lower system restriction, high temperature compatibility, corrosion resistance, easy serviceability and cost effectiveness. These challenging requirements cannot be met effectively without a systems approach. The exhaust system development process starts with selection of design methodology and evolution of checklists for system design specifications and definition of targets. System design specifications are elaborated with reference to performance, durability, legislation, installation, manufacturing / assembly / service considerations, etc. Checklists for exhaust system clearance and design review are given.