Life is all about balance. It may be cliché, but it's true, especially when modifying cars. Attention must be paid to balancing power with handling, air with fuel, and most importantly, parts on your car with money in your wallet. That same balancing act applies to our catch can kits. We spend a lot of time balancing the cost of a catch can kit with its benefits.
Many engines have a "clean" side of the crankcase ventilation system and a "dirty" side. Some engines produce just as much worrisome blow-by from their clean side as their dirty side. We usually develop a two-can kit for these engines, one for each side