Honda Civic Engine Air Filter K&N 1.7 (01-05)

Honda Civic Engine Air Filter K&N 1.7 (01-05)

Your 2001-2005 Civic 1.7 uses a paper engine air filter in the factory airbox. When that filter is dirty, K&N 33-2192 is the washable Honda Civic engine air filter that drops in the same box on the EM2 coupe and ES sedan.

Read that engine size carefully, because this page is the 1.7 only. A US 2002-2005 Civic Si is an EP3 hatch with a K20A3, and it takes a tall round filter that will not sit in this box. Canada put an Si badge on the 1.7 sedan, and that car does take 33-2192. Same badge, two completely different parts.

What It Is and Why It Works

The trade here is paper against oiled cotton, and it is worth being honest about both sides. Honda paper filters fine, and you bin it every service. This is four layers of oiled cotton gauze that you wash and keep for as long as you own the car. K&N rates the media at up to 99 percent overall efficiency and says it only needs cleaning every 75,000 miles under normal highway driving, both per manufacturer. It ships pre-oiled, so it goes straight in the box out of the bag.

What you give up is the oil-free part, and that matters on this car. Over-oil a cotton filter and you can put oil film on a hot-wire sensor, and then you are chasing a driveability problem that the filter caused. Use the right amount, which K&N puts at 0.65 oz for this panel, and keep the oil off the gasket face. If you would rather not think about oil at all, buy a dry filter instead and stop reading here. If you will clean it properly, this is the correct 1.7 panel and it is the last one you buy for the car.

Set your expectations on power honestly. A panel filter sitting in a stock airbox does not make horsepower you can feel. The restriction on a D17 is the box, the snorkel and the head, not the element inside it. Buy this because you are tired of replacing paper, not because you expect a dyno result. K&N backs stock-replacement High-Flow filters with a No-Hassle Lifetime Limited warranty, limitations apply.

Specs

Fitment

Factory engine airbox, 1.7 only, and it is not a cabin filter. The ES sedan and EM2 coupe share this panel across the whole D17 range, VTEC or not. K&N also lists 33-2192 on their 2002-2005 Civic Si 1.7 pages, which is the Canadian Si sedan and not the US car. The US Civic Si 2.0 (EP3, K20A3) takes K&N E-2429, a round filter 6.75 inches tall, and it will not physically sit in this airbox. This panel does not fit a Civic Hybrid and it does not fit a 1999-2000 Civic Si (EM1, B16A2), which is a different generation and a different filter. If you are not sure what you are holding, measure it: 12.5 by 7.75 inches and flat is this one. Anything round and five inches across is the Si 2.0.

What to Know Before You Buy

Buy the right chemicals with it. This filter is oiled, so when it comes time to clean it you need K&N cleaner and K&N oil, and their 99-5000 service kit has both in one box. Dry-filter cleaner is the wrong bottle for this media, so if you have an AEM DryFlow spray on the shelf from another car, leave it there. Wash it, let it dry all the way, oil it lightly, done. The most common way people ruin one of these is soaking it and putting it back in wet.

Confirm the engine before you order, not the badge. If the valve cover says K20, or the car is a US Si hatch, or it is a 2006 or newer Civic, this is the wrong SKU. If the car already has a K&N 69-1008TS or 69-1008TB Typhoon short ram on it, that kit came with its own conical filter and this panel does nothing for you. And if you came here looking for the thing that stops the cabin smelling like a wet dog, that is the cabin filter behind the glovebox, K&N VF2022, and it is a separate part.

While the airbox lid is off, spend two minutes on the rest of it. Check that the lid gasket is seated flat and the clips all latch evenly, because a warped lid on a twenty-year-old Civic leaks more air past the filter than any element flows through it. Look at the PCV plumbing that feeds this box too. A soaked elbow puts oil mist upstream of a brand new filter, and then people blame the filter. Snug the intake tube clamp on the way back together. That is the whole job.