Part types

Each CARB Executive Order covers one product line. We sort EOs into part types by the product name in the EO title.

Air Intake Cold air intakes and intake kits that replace the factory air box, filter or intake tube. 104 vehicles · 209 EOs read Header Tubular exhaust headers that replace the factory exhaust manifold. 59 vehicles · 62 EOs read Supercharger Belt-driven supercharger kits, usually with their own engine calibration. 2 vehicles · 34 EOs read Tuner / ECU Handheld programmers, ECU reflashes and plug-in modules that change engine or throttle calibration. 24 vehicles · 41 EOs read Throttle Body Larger-bore or modified throttle bodies. 8 vehicles · 12 EOs read Other Engine Part Other add-on or modified parts, such as fuel, ignition or crankcase parts. 30 vehicles · 225 EOs read

Catalytic converters are not listed by vehicle here: CARB matches converters by engine test group in its own converter lookup. Emissions "delete" parts never receive an EO and are not covered. Data retrieved November 11, 2026.