Granatelli Pres-In Valve Cover Breather

Shop automotive air filters and performance intake filters at Black Ops Auto Works for direct-fit air filters, drop-in replacement filters, universal clamp-on filters, cabin air filters, engine breather filters, HVAC filters, pre-filters, velocity stacks and intake filter accessories for cars, trucks, SUVs, Jeeps, muscle cars, diesel trucks, import performance builds and custom intake setups. This Air Filters collection is built for enthusiasts who want cleaner airflow, better filtration, improved engine protection, reusable performance filter options, replacement intake filters and vehicle-specific air filter fitment. Browse air filters for Dodge Charger, Dodge Challenger, Dodge Durango, Jeep Grand Cherokee, Jeep Grand Cherokee Trackhawk, Ram TRX, Chevrolet Camaro, Chevrolet Corvette, Cadillac CT5, Ford Mustang, Ford F-150, Toyota Tacoma, Toyota Tundra, BMW, Honda, Infiniti, Nissan, Porsche and other performance platforms. Shop Automotive Air Filters by Category Find the right air ...

This engine parts collection covers oil catch cans, thermostats, thermostat housings, radiator components, coolant accessories, engine covers, fuse box covers, cap covers, throttle bodies, supercharger pulleys, idler pulleys, tensioner pulleys, and engine bay dress-up parts for trucks, SUVs, muscle cars, boosted builds, high-horsepower street cars, and performance vehicles that need better reliability, cooling, airflow, oil control, and under-hood styling. The collection is particularly strong for Dodge Challenger, Charger, Durango, Jeep Grand Cherokee Trackhawk, and Ram TRX platforms running 6.2L Hellcat, 6.4L HEMI, and 5.7L HEMI engines, where oil catch can and cooling upgrades address known OEM weaknesses in the PCV and thermal management systems. Import performance platforms including GM LS-based builds, Chevrolet Camaro, and Corvette applications are also represented through Mishimoto, CSF, and ZPE GripTec product lines. Builders who invest in engine bay organization and reliab...

Engine breather filters are vented filtration caps and inline filter assemblies that allow crankcase pressure to vent safely to atmosphere without releasing raw oil vapor, reducing the internal pressure buildup that can push past valve cover seals, rear main seals, and PCV grommets in high-output and modified engines. Unlike a standard PCV system that routes crankcase gases back into the intake manifold, an open breather filter vents directly to air, making it the preferred choice on dedicated track cars, drag builds, and any engine running so much blowby that the factory PCV system cannot handle the volume without saturating the intake with oil mist. Performance engines that produce significantly more blowby than stock through increased displacement, high-lift camshafts, or forced induction benefit most from breather filter upgrades that vent excess crankcase pressure without contaminating the intake charge. Proper crankcase ventilation reduces oil consumption, keeps the intake tra...

Granatelli Motor Sports carries the legacy of the legendary Granatelli racing family into the performance aftermarket, producing ignition systems, performance filters, and engine upgrades that carry the heritage of a family that won the Indianapolis 500 and competed at the highest levels of American motorsport for decades. The brand is particularly known for its high-performance spiral-wound ignition wires that dramatically reduce radio frequency interference and improve spark delivery in high-compression and modified engine applications. Granatelli products cover a wide range of domestic V8 platforms including GM LS and small-block, Ford Modular, and Chrysler Hemi engines, as well as import performance applications where quality ignition components make a measurable difference in power delivery and consistency. The combination of racing heritage and practical performance engineering makes Granatelli Motor Sports a respected name among serious enthusiasts. Popular Upgrades Granatell...