{"product_id":"prl-motorsports-helix-air-oil-separator-civic-integra-accord","title":"PRL Helix Air Oil Separator for Civic\/Integra\/Accord\/Type R","description":"\u003cul\u003e\n\u003cli\u003ePrevents Intake Valve Carbon Buildup \u003c\/li\u003e\n\u003cli\u003eHelix Centrifugal Separation \u003c\/li\u003e\n\u003cli\u003eMultiple Modern Turbocharged Honda\/Acura Fitments \u003c\/li\u003e\n\u003cli\u003eBillet 6061, Silver Or Black \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003ePRL Motorsports Helix Air Oil Separator - Honda \u0026amp; Acura Turbo\u003c\/h3\u003e\n\n\u003cp\u003eDirect-injection turbo engines have a carbon problem, and the PCV system is the cause. It routes crankcase blowby back into the intake, and that blowby carries oil vapor, fuel, and moisture that bake onto your intake valves over time. On a port-injected engine, fuel washes the valves clean. On these engines it doesn't, so the deposits just accumulate. This PRL air oil separator catches those contaminants before they reach the intake, keeping the valves and manifold clean without venting metered air or changing how the car drives.\u003c\/p\u003e\n\n\u003ch4\u003eWhy This Matters On Your Engine\u003c\/h4\u003e\n\n\u003cp\u003eWorth understanding, because it's a real and expensive problem specific to how these engines are built.\u003c\/p\u003e\n\n\u003cp\u003eYour engine is direct-injected, which means fuel sprays straight into the cylinder rather than past the intake valves. That's efficient, but it means the valves never get the fuel wash that kept port-injected engines clean.\u003c\/p\u003e\n\n\u003cp\u003eMeanwhile the PCV system is depositing oil vapor and moisture right onto those dry valves. Over tens of thousands of miles it builds into carbon deposits thick enough to disrupt airflow, and the fix at that point is walnut blasting the valves, an involved and expensive job.\u003c\/p\u003e\n\n\u003cp\u003eAn air oil separator catches the oil vapor before it gets there. It's preventive maintenance against a problem that's genuinely costly to fix once it's happened.\u003c\/p\u003e\n\n\u003ch4\u003eIt Also Helps Your Tune\u003c\/h4\u003e\n\n\u003cp\u003eA second benefit, and it matters more on a car making power.\u003c\/p\u003e\n\n\u003cp\u003eThe oil and fuel vapor going back into the intake effectively lowers your charge's octane, since you're introducing contaminants into the air being compressed. Lower effective octane means a higher chance of detonation, which is exactly what you don't want on a boosted engine.\u003c\/p\u003e\n\n\u003cp\u003eRemoving those contaminants keeps your intake charge cleaner, which supports more consistent power and reduces detonation risk. On a tuned car running real boost, that's a genuine reliability benefit rather than just a maintenance one.\u003c\/p\u003e\n\n\u003ch4\u003eHow The Helix Works\u003c\/h4\u003e\n\n\u003cp\u003eThe design is where this separates contaminants effectively rather than just catching some of them.\u003c\/p\u003e\n\n\u003cp\u003eInside the canister is a proprietary helix that spins the incoming blowby gases into controlled centrifugal motion. Heavier oil droplets, fuel, and moisture get flung outward against the canister walls, where they condense and collect at the bottom. The cleaned air routes back into the intake.\u003c\/p\u003e\n\n\u003cp\u003eThat centrifugal separation is more effective than a simple baffle, because it uses the mass difference between air and contaminants to physically separate them rather than just hoping droplets stick to a surface. More of the oil ends up in the can and less ends up on your valves.\u003c\/p\u003e\n\n\u003ch4\u003eClosed Loop, No Emissions Trouble\u003c\/h4\u003e\n\n\u003cp\u003eImportant distinction, since some catch cans get this wrong.\u003c\/p\u003e\n\n\u003cp\u003eThis retains closed-loop operation. The cleaned air goes back into the intake rather than venting to atmosphere, which means it doesn't dump metered air, doesn't interfere with emissions equipment, and doesn't alter your factory drivability or fueling.\u003c\/p\u003e\n\n\u003cp\u003eA vent-to-atmosphere catch can throws off your fueling and isn't emissions legal. This isn't that. It cleans the air and returns it, so the system behaves exactly as the factory intended, just cleaner.\u003c\/p\u003e\n\n\u003ch4\u003eYou Have To Drain It\u003c\/h4\u003e\n\n\u003cp\u003eBeing straight about the one maintenance requirement.\u003c\/p\u003e\n\n\u003cp\u003eThe AOS collects contaminants, which means it fills up and needs draining at regular intervals. How often depends on your climate and how you drive, more frequently in cold weather and with short trips, since moisture accumulates faster.\u003c\/p\u003e\n\n\u003cp\u003eIt's fully serviceable and draining is straightforward, but it's not fit-and-forget. Check it periodically and drain it before it fills. That's the small ongoing cost of keeping your valves clean.\u003c\/p\u003e\n\n\u003ch4\u003eBuilt In-House From Billet\u003c\/h4\u003e\n\n\u003cp\u003ePRL designs and machines these themselves rather than sourcing a generic can.\u003c\/p\u003e\n\n\u003cp\u003eThe canister is CNC-machined 6061-T6 billet aluminum with a hard anodized finish, in black or silver. Everything around it is built to match: billet aluminum fittings, a billet check valve, Viton O-rings for chemical resistance against oil and fuel, NBR reinforced hoses rated for the engine bay, and a laser-cut, CNC-bent 304 stainless mounting bracket.\u003c\/p\u003e\n\n\u003cp\u003eViton in particular matters here, since it resists the oil and fuel this system handles constantly, where a lesser O-ring material would degrade. It's the difference between a can that seals for years and one that starts weeping.\u003c\/p\u003e\n\n\u003ch4\u003eSilver Or Black\u003c\/h4\u003e\n\n\u003cp\u003eTwo hard-anodized finishes, purely a look.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSilver\u003c\/strong\u003e shows off the billet machining and stands out in the bay.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlack\u003c\/strong\u003e is the understated option, blending into a mostly-black engine bay.\u003c\/p\u003e\n\n\u003cp\u003eBoth are hard anodized over the same billet, so they're identical in function and durability.\u003c\/p\u003e\n\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\n\u003cul\u003e\n    \u003cli\u003ePRL Helix air oil separator canister\u003c\/li\u003e\n    \u003cli\u003e304 stainless steel mounting bracket\u003c\/li\u003e\n    \u003cli\u003eCustom molded hose set\u003c\/li\u003e\n    \u003cli\u003eBillet fittings and check valve\u003c\/li\u003e\n    \u003cli\u003eAll required clamps and installation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\n\u003cp\u003e2016-2021 Honda Civic Si and 1.5T\u003cbr\u003e2017-2021 Honda Civic Type R (FK8)\u003cbr\u003e2022-2026 Honda Civic 1.5T\u003cbr\u003e2023-2026 Acura Integra 1.5T\u003cbr\u003e2023-2026 Honda Civic Type R (FL5)\u003cbr\u003e2024-2026 Acura Integra Type S (DE5)\u003cbr\u003e2018-2022 Honda Accord 2.0T\u003c\/p\u003e\n\n\u003cp\u003eThe FL5 and DE5 share the same part. Select your application and finish at checkout.\u003c\/p\u003e\n\n\u003ch4\u003eWho Should Grab This\u003c\/h4\u003e\n\n\u003cp\u003eThis is for the owner who wants to keep their direct-injection engine's valves clean and avoid the walnut-blasting bill down the road, and for anyone tuned who wants a cleaner intake charge for consistency and safety. Effective helix separation, closed-loop so it stays emissions-friendly, and built in-house from billet with materials that last. Fit it, drain it on schedule, and protect the engine long term.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e 2016-2021 Civic Si\/1.5T, 2017-2021 Civic Type R, 2022-2026 Civic\/Integra 1.5T, 2023-2026 Civic Type R (FL5), 2024-2026 Integra Type S (DE5), 2018-2022 Accord 2.0T. \u003cstrong\u003eFinishes:\u003c\/strong\u003e silver or black hard anodized. \u003cstrong\u003eCanister:\u003c\/strong\u003e CNC-machined 6061-T6 billet. \u003cstrong\u003eSeparation:\u003c\/strong\u003e proprietary internal helix, centrifugal. \u003cstrong\u003eOperation:\u003c\/strong\u003e closed loop, does not interfere with emissions equipment. \u003cstrong\u003eIncludes:\u003c\/strong\u003e canister, stainless bracket, molded hoses, billet fittings and check valve, hardware. \u003cstrong\u003eNote:\u003c\/strong\u003e requires periodic draining.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003cp\u003e2023-2026 Acura Integra Base\/ASpec\u003cbr\u003e2024-2026 Acura Integra Type S\u003cbr\u003e2018-2022 Honda Accord 2.0T\u003cbr\u003e2016-2021 Honda Civic EX\/Sport\/Si\u003cbr\u003e2017-2021 Honda Civic Type R\u003cbr\u003e2022-2026 Honda Civic Ex\/Sport\/Si\u003cbr\u003e2023-2026 Honda Civic Type R\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\u003c\/ul\u003e\n","brand":"PRL Motorsports","offers":[{"title":"16-21 Civic Si\/1.5T \/ Silver","offer_id":50398982242338,"sku":"PRL-1052-1-SIL","price":274.99,"currency_code":"USD","in_stock":false},{"title":"16-21 Civic Si\/1.5T \/ Black","offer_id":50398982275106,"sku":"PRL-1052-1-BLK","price":274.99,"currency_code":"USD","in_stock":false},{"title":"FK8 Civic Type R \/ Silver","offer_id":50398982307874,"sku":"PRL-1053-1-SIL","price":274.99,"currency_code":"USD","in_stock":false},{"title":"FK8 Civic Type R \/ Black","offer_id":50398982340642,"sku":"PRL-1053-1-BLK","price":274.99,"currency_code":"USD","in_stock":false},{"title":"22-26 Civic Si\/Integra 1.5T \/ Silver","offer_id":50398982373410,"sku":"PRL-1054-1-SIL","price":274.99,"currency_code":"USD","in_stock":false},{"title":"22-26 Civic Si\/Integra 1.5T \/ Black","offer_id":50398982406178,"sku":"PRL-1054-1-BLK","price":274.99,"currency_code":"USD","in_stock":false},{"title":"FL5 Civic Type R \/ Silver","offer_id":50398982438946,"sku":"PRL-1055-1-SIL","price":274.99,"currency_code":"USD","in_stock":false},{"title":"FL5 Civic Type R \/ Black","offer_id":50398982471714,"sku":"PRL-1055-1-BLK","price":274.99,"currency_code":"USD","in_stock":false},{"title":"18-22 Accord 2.0T \/ Silver","offer_id":50398982504482,"sku":"PRL-1056-1-SIL","price":274.99,"currency_code":"USD","in_stock":false},{"title":"18-22 Accord 2.0T \/ Black","offer_id":50398982537250,"sku":"PRL-1056-1-BLK","price":274.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/prl-helix-air-oil-separator-fo_o1c2.jpg?v=1790027202","url":"https:\/\/www.hybrid-racing.com\/products\/prl-motorsports-helix-air-oil-separator-civic-integra-accord","provider":"Hybrid Racing","version":"1.0","type":"link"}