The APR Catch Can System with PCV Plate is a comprehensive upgrade to your engine's Positive Crank Ventilation (PCV) system. This factory-racecar-inspired system takes a multi-step approach to address several performance-robbing issues and critical engine safety concerns with the factory system. The basis for the system is simple: Your engine's factory PCV system has several issues. The APR Catch Can System with PCV Plate addresses each one.

Note: Quattro A3/S3 and MK7/7.5R will require a standalone washer bottle replacement.
 
Features:
Catches oil and gunk keeping your engine's air paths clean
Increases performance by reducing octane-lowering oil vapours
Prevents boost leaks from torn diaphragms and N80 valve issues
Completely replaces the PCV system and addresses all failure points
Helps prevent oil starvation and engine failure on the track and in high-G situations
Internally baffled can with quick draining valve
High-quality hoses with clean braided finish and swivel AN connectors
Complete billet aluminium top plate with proper T304 stainless steel oil separation and drain back
Additional check-valve for the N80 valve
Precision fit bracketry for a proper and clean fit
Stand-off pegs for mounting the factory engine cover
Attractive design looks right at home in your engine bay
Fits most engine bays and modification configurations
 
THE PROBLEMS
Firstly, when oil is sucked through the PCV system, it ends up in your intake tract. It’s sucked through your turbo, blown through the intercooler, and forced into the engine. Oil coats the intercooler, hoses and everything in its path. Not only does this cause a mess, it lowers the effectiveness of the intercooler. More importantly, oil vapours lower your effective octane level, leading to performance-robbing and engine-damaging knock. This means less horsepower and the possibility of engine damage.
 
Next, boost pressure and extreme heat are applied directly on the diaphragms within the PCV valve and directly onto the factory-activated charcoal filter solenoid, or N80 valve. The diaphragms can fail over time, causing massive boost leaks and over-pressurisation of the engine crankcase. The N80 valve can’t hold back the pressure, causing a boost leak into the activated charcoal filter.
 
Boost leaks rob you of power, and can lead to over-spinning of the turbocharger. Pressurisation of the crankcase causes oil to force past the piston rings, leading to potentially engine-destroying localised pre-ignition points on the crown of the piston. Crankcase pressurisation also results in blown seals, such as the infamous rear main seal. Each situation is bad. You’ll end up with less horsepower, the possibility of turbocharger failure, and the possibility of engine and component damage.
 
Lastly, under-racing, or hard-driving, and high G-force conditions, mean excessive amounts of oil can be forced through the system to be consumed by the engine. This goes beyond light oil and vapour ingestion discussed above. These are excessive amounts that cause plumes of smoke to pour from the exhaust and engines to fail due to oil starvation. Oil starvation is a serious condition that can cause engine failures in fractions of a second. Often when any warning of starvation has occurred, it’s already too late.
 
THE SOLUTION
Firstly, the factory PCV is eliminated. A new race-inspired oil separation and drain-back system, or top plate, is installed. The top plate is diaphragm-free, effectively eliminating the boost-activated fail-points on the factory design. The active charcoal filter port remains, but a newly installed check valve acts as another line of defence before the N80 valve. Internally to the plate, baffles keep oil from spilling out of the system. All oil galleys, including the coarse oil separation galley, remain, promoting proper evacuation of crank-case gases and proper drain-back of oil into the engine rather than the catch can.
 
Next, the APR catch can sits between the plate and the turbo inlet. Crankcase gases build up within the engine and must be evacuated. The plate prevents coarse oil from easily spilling into the can. Remaining vapours and moisture travel through the can’s multiple layers of internal baffling, collecting in the can while leaving cleaner gases to escape the system. This leaves your engine happy and clean, promoting more power, engine safety, and engine longevity in even the most demanding of situations!
 
The top plate, lines, and can all mount cleanly in the engine bay and are made from black-anodised billet aluminium, with a T304-stainless coarse oil separation galley tube. The can drains easily with the integrated drain valve. All plate mounts are top-side, eliminating the chance of parts coming loose and falling into the cylinder head.
 
High-quality braided lines with swivel AN fittings and hose guides are included for a clean and professional-looking install. Billet stand-off pegs allow you to raise and retain the engine cover, should you so choose. Precision bracketry makes for an easy and solid install. Lastly, an optional washer fluid reservoir also allows for usage of the system on vehicles that otherwise would have a washer fluid reservoir blocking the install.
 
Fits:
2015–2024 Audi A3, Audi Q3, Audi S3, Audi TT, Audi TTS
Volkswagen Arteon, Volkswagen Golf, Volkswagen Golf Alltrack, Volkswagen Golf R, Volkswagen Golf SportWagen, Volkswagen GTI, Volkswagen Jetta, Volkswagen Tiguan
 
Part #: MS100199