7.25" X 2.5"Round Billet Aluminum Performance Oil Catch Breather Tank+Cap Red For Hyundai Chra 2009 A4 Cabriolet Engine Designation:

2009 A4 Cabriolet Engine Designation: BWT

9mm(small one)

2010-2013 For Acura MDX 3

Reduce drivetrain shudder under hard acceleration by installing our MadDogPerformance Pitch Stop mount

A4 / S4 2005 - 2015

7.25" X 2.5"Round Billet Aluminum Performance Oil Catch Breather Tank+Cap Red For Hyundai Chra 2009 A4 Cabriolet Engine Designation:An oil catch tank can is used in turbo applications, or high performance racing applications where excessive blow by (leakage past the piston rings) of air and fuel vapor occurs. This creates a positive pressure in the crankcase. During engine operation, blow by gases, as well as oil mist from the rotating components of the engine, pass through the PCV valve and are routed back into the intake for the engine to burn off. However, some of the oil mist