K & N Filter

[88mpa]

Hi Can anyone help has anyone fitted a K & N Filter i have tried today and failed the filter just would not push on to the flange in the airbox and can you get the airbox out with the engine in the car

[Keith Newby]

I have a 2000 and the K&N filter went in without too much effort if I remember correctly. I might have fiddled with it to make it seat properly. With the engine in place, I don't think you can remove the airbox without destroying the mounting tabs. I know someone did remove a box intact, but they lowered the engine to allow removal...so it can be done on a 986.

[harryrcb]

Originally Posted by Keith Newby

I have a 2000 and the K&N filter went in without too much effort if I remember correctly. I might have fiddled with it to make it seat properly. With the engine in place, I don't think you can remove the airbox without destroying the mounting tabs. I know someone did remove a box intact, but they lowered the engine to allow removal...so it can be done on a 986.

no need to even take the air box out to install a filter!! and if you do need to take it out , after taking the outside grille of and de snorkel it you loosen the intake manfold and then you can manipulater the airbox out in one piece.

[trieullionaire]

The K&N is a tighter fit but mine went in just fine.

[88mpa]

Originally Posted by harryrcb

no need to even take the air box out to install a filter!! and if you do need to take it out , after taking the outside grille of and de snorkel it you loosen the intake manfold and then you can manipulater the airbox out in one piece.

Hi thanks for the advise on fitting a k & n but could you tell me the benefit of de snorkelling

[trieullionaire]

I don't have numbers to prove it personally but I thought when I first desnorkeled my car, the engine sound noticeably better when I throttled it past the 3k rpm range.

[harryrcb]

Originally Posted by 88mpa

Hi thanks for the advise on fitting a k & n but could you tell me the benefit of de snorkelling

Mostly sound but if you could measure it you actually increase power - more air getting into the engine. To really make it "breathe" better you need to install a cold air system and tuned exhaust then you will feel and be able to measure the increase in power. If power is not your thing then leave it alone.

[Steve Tinker]

I de-snorkeld and found (by my sensitive butt dyno) a decrease in low down torque. Replaced the snorkel and the torque came back - so its still in place.....

[Gator Bite]

Originally Posted by harryrcb

To really make it "breathe" better you need to install a cold air system....

I've seen this said a lot in regard to our cars, and it doesn't really apply. To understand why, let's answer the question, "What is a Cold Air Intake?"

In the old days, car manufactures allows the engine to breath air from inside the engine compartment. Anyone but me remember the old days when the air cleaner was under a wing nut....? Look at this example.



You can clearly see where this engine is breathing from. It's getting it's air from the front right side of the engine, right behind the radiator. Guess what...? The air in that area is hot, and hot air going into an engine develops a lot less horsepower than cooler air. That's where the whole 'cold air intake' thing started. Folks started routing the air supply from a place that was cooler than the engine compartment.

Well, guess what....? All Boxsters get their air from the left side vent opening in front of the back wheel. You can't get any better than that. All Boxsters come with a cold air intake. I've see 986s with aftermarket kits that open the airbox up so it can get more air. You might as well call that a hot air intake and say goodbye to some horsepower because those kits allow the intake to pull from the very hot engine compartment.

[Christian H]

Originally Posted by 88mpa

Hi Can anyone help has anyone fitted a K & N Filter i have tried today and failed the filter just would not push on to the flange in the airbox and can you get the airbox out with the engine in the car

When I fitted my K&N the box it came in had a small tube of grease and instructions stating that the filter was a very tight fit.

The grease was put on the sliding carrier that the panel filter sits in to ease it back into position, there should be no need to remove the airbox.