Every internal combustion engine has pressure and blow-by gases in the crankcase and valve cover. Some engines do a better job of separating the oil vapors before reaching the PCV(positive crankcase ventilation) vents than others. Most engines don’t,sending a nasty mix of oil vapor and waste gases out the PCV vent and into the intake system. These vapors smother important (and costly)sensors with oil and gunk. In extreme cases, this gunk can build up on the valves killing performance. On a micro level, oil vapors displace oxygen molecules altering air-fuel ratios and effectively lower the octane level of your fuel.

The concept is simple – trap the oil vapors in the PCV system before they have the opportunity to reach the air intake. It takes more than an empty can and some tubing to achieve this task. From the start, our oil catch cans are designed to pick up where others leave off. Our inlet and outlet fittings are made from ¾” tubing, the same basic size as the OEM PCV fittings and hoses. Larger inlet and outlet fittings allow for uninterrupted flow from the PCV vent to the can and back. Tubing smaller than stock will restrict the PCV vent and the flow of vapors. As PCV gases enter our catch can they disperse and turn upwards, forced to flow through a series of four filter screens. As the gases flow through these screens, heavy oil and gunk sticks and lighter gases reach the outlet tube at the top. Accumulated oil and gunk naturally runs off the filter screens and collect at the bottom ofthe tank. Without these screens, only a fraction of the liquids are trapped by the catch can. A bottom drain allows the tank to be drained without removing the entire catch can.

In order for an engine part to be considered stealth, it has to work well without giving up it's purpose to curious eyes. The stealth oil catch can does exactly that.  Essentially a stripped-down and smoothed version of our ultimate can, the stealth can offers the same internal design without the bells and whistles.

Built to function, the stealth can accomplishes the fundamental job of an oil catch can without any additional thought or modification.  Bead rolled inlet and outlet fittings allow connection of 3/4" tubing. Inside, four filter screens create a maze for the PCV gases to navigate allowing oil droplets to collect as lighter gases pass. Gravity lends a hand,collecting the oil and gunk at the bottom of the can. A bottom drain allows the can to be drained at any time.

Minimized by design, the stealth can skips adjustable features in order to achieve a discrete look. Vertical and horizontal mounting brackets are permanently welded to the back of the can. Inlet and outlet fittings oppose the mounting brackets, placed inline with each other and the bottom drain. Press-formed top and bottom caps offer a smooth, factory look without any logos or markings.

Throughout the life of the stealth can, the filter media will never need to bereplaced. Tubing can be removed and re-installed from the fittings without ever damaging them. There are no o-rings or other accessories to replace. The entire catch can is built with precision from heavy duty materials proven to stand the test of time. Like the ultimate, we can't call this one bulletproof (really, who shoots a catch can?). We can't call it ultimate either, so let the market decide...

Construction:
- Lids press-formed from 304 stainless steel
- Inlet & outlet fittings fabricated from 304 stainless tubing
- Can fabricated from 304 stainless tubing and CNC machined components
- Bottom drain fitting 304 stainless steel with ¼” NPT threads
- Precision TIG welding on all stainless steel components
- Internal filters machined from 6061 perforated aluminum

Fitment:
- Installation truly universal
- Horizontal and vertical mounting brackets included
- Hose barbs fit 3/4" tubing
- Designed for recirculation into intake system