The Norma hose connetors are designed for 3/4th inch hoses. Please Note: This is a DIY system and may require other components, depending on application, such as an APR boost tap, hoses and brackets.
Elimination of a possible failure point. Of the plethora of options I seriously considered the following: 034 Motorsports I like buying products for my S4 from companies that specialize in the Audi brand. The vapors pool in the bottom of the can, while the rest of the pressure is diverted back to the intake tract where it’s burned off by the engine. Catch cans run the gamut from some DIY efforts that appear to use nothing more than a beer can and some steel wool to custom built setups costing hundreds of dollars. The system routes crankcase gasses through the APR catch can, which filters oil vapors through a track-proven four-staged baffling system. The APR Oil Catch Can System eliminates boost pressure from seeing the front PCV port, where applicable. Some PCV system can fail, creating a massive boost leak that directly pressurizes the crankcase. Messy oil pools in the intake tract and coats the intercooler, leading to hose degradation, and reduced IC effectiveness. Carbon builds up on the back of intake valves, which reduces airflow and hurts performance. Oil vapors mix with the air/fuel mixture, which reduces octane and hurts performance. Unfortunately, this results in the following performance robbing scenarios: To relieve the pressure, the engine uses a PCV system that dumps the pressure, along with oil vapors, back into the intake tract to be consumed by the engine. This is exacerbated when increasing horsepower and driving harder. 
The ProblemsĪn engine produces extreme pressures within its cylinders during operation and some ultimately slips by the piston rings and pressurizes the engine’s crankcase. The can drains in seconds with the flick of a knob, and is recommended at all stages of performance.
This helps to reduce carbon buildup on intake valves, octane lowering oil vapors and oil pooling in the intake tract. The APR Oil Catch Can System traps excessive crankcase oil vapors and gunk from entering the engine. The new Audi A3, which celebrates its premiere at the 2012 Geneva Motor Show, presents the combined technological competence of Audi in compact format. APR Oil Catch Can - Universal (Can and Fittings Only)ĭesigned for the DIY installers, the universal APR Catch Can Systems and Accessories are designed for use on vehicles where APR does not sell an application specific Catch Can System.
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