High intake air temperatures increase air expansion, making it difficult to achieve ideal combustion and directly reducing power. Turbocharged vehicles therefore use intercoolers to cool the intake air. However, if driving airflow reaches only about half of the core, intercooler performance is also halved.

Cool Action II was developed to address this situation and fully utilize the performance of the factory intercooler.

Its unique fin shape straightens airflow entering through the hood duct (front hood duct), distributing it evenly across the entire intercooler core. This promotes lower intake air temperatures and conditions closer to ideal combustion, allowing the engine to deliver its inherent performance.

When installed with the ZERO/SPORTS Inner Duct Supporter, interference prevents use of the supplied bolts. Please obtain two M6 × 15–18 low-head bolts separately.

The part at the lower left in the foreground is the Cool Air Intake (Blue), part number 0307127.