K-TUNED K-SWAP COLD AIR INTAKE (FITS RBC/PRB/SKUNK2)K TUNED Universal K swap Intake. Finally a good intake system for your K series swapped car. * Available in 3" and 3. 5" * This intake is designed to fit engine swaps that are using the oem RBC or RRC intake manifold. On the throttlebody side we include our Velocity coupler to allow smooth airflow into the engine and an increase in HP. The aluminum piping is fully polished and allows the use of all factory sensors. This K Tuned intake design is custom