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[Mr.OmegaMan]

If you want a bit of induction noise/slightly freer airflow, remove the trumpets from inside the airbox...

It's free and doesn't bugger up the MAF sensor

What is this exactly? I've never come across it before. Might try this if it doesn't have any negative affects overall, Just adds a little noise.

Should just unscrew from inside the airbox , did it on the vectra but had cold air feed .

Typed it in google, Found this on OOF's old site.. This the part ?



Can't say I've noticed it before tbh..

[05omegav6]

If you want a bit of induction noise/slightly freer airflow, remove the trumpets from inside the airbox...

It's free and doesn't bugger up the MAF sensor

What is this exactly? I've never come across it before. Might try this if it doesn't have any negative affects overall, Just adds a little noise.

Take the top off the airbox... will be blindingly obvious 

[symes]

If you want a bit of induction noise/slightly freer airflow, remove the trumpets from inside the airbox...

It's free and doesn't bugger up the MAF sensor

What is this exactly? I've never come across it before. Might try this if it doesn't have any negative affects overall, Just adds a little noise.

Take the top off the airbox... will be blindingly obvious

not if you never looked at condition of air filter

[Mr.OmegaMan]

If you want a bit of induction noise/slightly freer airflow, remove the trumpets from inside the airbox...

It's free and doesn't bugger up the MAF sensor

What is this exactly? I've never come across it before. Might try this if it doesn't have any negative affects overall, Just adds a little noise.

Take the top off the airbox... will be blindingly obvious

not if you never looked at condition of air filter

Changed it month or two ago, Time flys can't remember  .. Or was that for Al ? symes

[symes]

If you want a bit of induction noise/slightly freer airflow, remove the trumpets from inside the airbox...

It's free and doesn't bugger up the MAF sensor

What is this exactly? I've never come across it before. Might try this if it doesn't have any negative affects overall, Just adds a little noise.

Take the top off the airbox... will be blindingly obvious

not if you never looked at condition of air filter

Changed it month or two ago, Time flys can't remember  .. Or was that for Al ? symes

mine done 2-3 months ago-got to do plugs yet--cant be asked at mo-still runs fine(so far)

[plym ian]

I've got a piper cross on mine no probs here what so ever. I had it on my old omega ran it for about a year on that one an no problems at all

I wouldn't say I've noticed a diffrence in sound. Hope this helps

[TheBoy]

For performance, a genuine GM is about the best due to surface area. Cones generally the worse

[plym ian]

For performance, a genuine GM is about the best due to surface area. Cones generally the worse

But a nicer sound

[TheBoy]

For performance, a genuine GM is about the best due to surface area. Cones generally the worse

But a nicer sound

"Nicer" is always in the eyes (or ears) of the beholder, but if you're after that intake suck/whistle noise, cones are great...   ...if you don't need power

[cem_devecioglu]

stock omega inlet is designed towards low rpm power and torque.. K N type filters will have advantage in high rpm range but with one condition.. inlet pipes must follow a short path with a design allowing faster air speed.. connecting a k n filter to the stock pipes wont bring some considerable power gain but instead you may have problem with maf..  I think those type of filters are more suitable to engines with map sensor instead of maf..

[omega3000]

K&N panel filter's are available 

[Vamps]

When I was a lad......   To increase induction noise we simply removed the air filter totally, put a but of wire gauze across to stop stones..................

[05omegav6]

K&N panel filter's are available 

http://www.ebay.co.uk/itm/K-N-AIR-FILTER-FOR-VAUXHALL-OMEGA-2-2-1999-2003-33-2734-/390824166695?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item5afeef8527

So they are, at at least three times the price of a genuine one I very much doubt that they're three times better though

[Spireite]

I've always used K&N in all my cars, mainly panel filters.

You can clean them as regularly as you like, flow more air, and give a nicer induction roar.

Make your own mind up and check on google to ask a general question about adding a K&N, most forums explain the advantages, also read up on K&N's own website.

There's a lot of purists on this forum, I guess it might be the type of car attracts a certain audience could one say, depends on your previous experiences in life also, I've built engines in my time, done all my own mechanics and never paid for any garage services in my life.  You learn a lot doing everything yourself.

I have K&N panels in all my cars, including a group a cone on my Cosworth.

OOF is not the be all and end all, everyone is entitled to their opinion, but is not necessarily the best way, find your own way an filter out the proverbial and form your own opinion.

K&N all the way over stock.

[Marks DTM Calib]

Here is a reality check......the K and N does not flow more air than the stock, thats a fact (and physics) and verified some years ago with back to back comparison on a rolling road. The K and N (and Piper etc) worked great on the old cars with small pancake filters or small panel type filters but the modern units with large surface area, long service interval filters, are a VERY different story.

They still have a place, for those wanting a bit more induction roar, kit cars, engine transplants and stuff that is highly modified and far from stock but, for the standard engine setup....a waste of money (unless you want more noise lol).

As for the trumpet removal, that can reduce airflow (again physics) beleave it or not.