Garage Sale! › ARC Intake Chamber for CA18 Engine (S13/180sx/Silvia) Image 1 of 3 Image 2 of 3 Image 3 of 3 ARC Intake Chamber for CA18 Engine (S13/180sx/Silvia) Sale Price: $165.00 Original Price: $200.00 sold out Discontinued CA18 Intake Chamber for Nissan S13 chassis. Will fit other applications. Sold Out Added! Discontinued CA18 Intake Chamber for Nissan S13 chassis. Will fit other applications.