This Stage 2 air filter features DNA's advanced FCD (Full Contour Design) and is designed to work only with DNA stock replacement air filters. When used correctly, it won't interfere with your engine's airflow, torque, or power. Installation information is included with this DNA Stage 2 Air Filter. Fuel injection recalibration is recommended but not required. Stock Airbox with DNA S1 & S2 Air Filter Flow: 73.30CFM (Cubic Feet Per Minute) @1.5" H2O corrected. The filtering efficiency of the combination with DNA Stage 1 Air Filter (P-KT3N18-0R) is very high with 98-99% filtering efficiency (ISO 5011). Fuel recalibration is recommended.

DNA Stage 2 kits are either DNA filters or DNA covers and are designed to replace part of your airbox, greatly increasing airflow to your engine. With proper fuel reconditioning, the results are always very impressive.


Manufacturer: ‎DNA High Performance Filters
Brand: ‎DNA High Performance Filters
Manufacturer Reference: ‎P-KT3N20-S2-COMBO
API Grade: ‎Replacement Part