Battle Mini Oil Catch Can 02-06 Mini Cooper

  • Sale
  • $150.00
  • Regular price $169.00

Tired of blow by coating your intercooler with oil?

We were. Ours got so bad it was gumming up the MAP sensor on the intake.

The result is more engine wear, reduced octane levels, more heat soak in your intercooler robbing horsepower and many other associated problems. A quality catch can can do wonders for your engines life and performance.

That is why we designed the Battle Mini Oil Catch Can.


  • The tank body is fully welded aluminum alloys
  • Internal Baffle is a three layer stainless steel wire mesh assembly
  • Easy to drain valve
  • All connecting hoses and clamps for easy quick install
  • Powder Coated for an attractive and durable finish
  • Complete Kit

So why do you need an Oil Catch Can?

The reason is, that the valve rings do not create a perfect seal. If they did, the pistons would not be able to move up and down. But since there is a tiny gap between the cylinders and the pistons, a little bit of pressure is able to escape into the valve cover area. At the same time burnt oils are also escaping into the valve cover area as well. This is called "blow by". This stuff is nasty and does enter the valve cover area and will escape into the PCV line and Breather. The PCV line will recycle these burnt solids back into your intake manifold which will increase the level of carbon solids, and reduce your octane levels.
For a boosted setup, the Breather line will recirculate some of these oils into the intake which will go into the intercooler. Of course, the intercooler works best when the interior surfaces are nice and clean. When the breather line returns any fumes with oils into the intake, this will start to coat the inside of the intercooler with oil, and reduce the heat exchange efficiency. The Battle Mini Catch Can prevents this from happening by capturing the blow by and depositing into the catch can for easy draining of these engine damaging materials. 

Comes as a complete kit.

Some states (like California) have ever tightening requirements for emissions testing and inspections. Always check your local regulations on compliance for street use.