Click to expand Tap to zoom Replacement Air Filter for FMINDK35, FMINDK40, and FMINDK45 by Forge Motorsport Sale $257.00 | / Foam - $257.00 Pleated - $257.00 Filter Type Foam Pleated 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart This product is ready to order. Orders will have an estimated 2-week lead time. This is a replacement cotton filter, or high flow, pleated, synthetic nanofiber filtration air filter (an upgrade compared to the cotton filter) for the Forge Motorsport induction kit FMINDK35, FMINDK40, and FMINDK45