The worlds largest off the shelf AOS (air/oil separator) or catch can is finally ready to ship! 


These have extensive baffling internally and also feature a KN panel filter on the top to aid in oil retention while breathing freely. The main body features 3 inlet fittings to vent the crank case pressure, and includes the baffled oil fill neck.  


We also make draining these easy with a -6an fitting on the bottom of the can which can be connected to a petcock or valve to drain manually or if you select the return kit, we include an inline filte, check valve, dip stick tube, and the necessary fittings to return the oil to the pan. 


Each can comes with the necessary AN fittings, hose, and hardware to complete the installation. 



High Volume Catch Can/AOS- R-35 GT-R

Oil Return Kit