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[felix777]

hi guys..quick question that i am sure has been asked before,,would there be any benefit of installing said above panel filter?...or would it mess up the maf thingy etc...was also thinking of sports backbox,,a kind of smart looking chrome twin pipe type..would look good i think plus put a really nice note to the v6....any advice or tips would be great.....tia kev

[Agemo]

Apparently a well oiled K&N panel filter will deposit some of the oil into the MAF, I suppose a none oiled one would be OK. I have a Pipercross one and no problems - YET!

[tango]

i put a k&n in my previous car
didnt notice any difference in fuel economy or performance
and it didnt affect the maf in anyway although i have read that it does
ive had a custom exhaust on my car if you cehck my other post you will see a link check them out

[sparkyw666.]

no problem with mine . i have a bmc sealed one with air pipe on it also not oiled

[TheBoy]

The K&N will likely REDUCE performance compared to a new, genuine GM filter.

The filter oils are also known to destroy the MAFs.


Personally, I'd just stick in a genuine GM one annually

[feeutfo]

a panel filter in the air box is probably the least problematic if not oiled, but if there is no gain to be had i suppose the obvious question is why bother...?

cone filters that replace the air box altogether are said to suck in warm air from the engine bay, which seems obvious tbh.

[humbucker]

my cavalier has a K&N panel filter, and so does my astra, but this is in addition to other air/circulation modifications (derestricted airbox, additional air intake etc). the K&Ns are guaranteed for a million miles so you wont need to replace it and they do provide a nice growl hehe. good if used as a component in overall air intake modifications to release a few extra horses (perhaps) 

[TheBoy]

The genuine gm filter has a massive surface area, thus why virtually every other filter reduces performance.  Cones etc, too much hot air.

[duggs]

Cones ! Totally pointless unless you want to be 18 again.

Noisy as heck, decrease in performance.

Problem is, when it comes to cones, youngsters associate extra noise with speed and power...it doesn't work like that....just simply sounds so. The reality IS WITHOUT A DOUBT...LESS POWER, HEAVIER FUEL CONSUMPTION. Tried it in several cars I've owned...all pointless...plus you often look and sound like a prat !

[humbucker]

you can always isolate a cone filter either inside appropriate size air box or install a plastic/alu isolation chamber with a dedicated cold air feed going to it. otherwise not a lot of point. they look shit too. stick with the panel filter 

[feeutfo]

you can always isolate a cone filter either inside appropriate size air box or install a plastic/alu isolation chamber with a dedicated cold air feed going to it. otherwise not a lot of point. they look shit too. stick with the panel filter 

....er, has it not already got an air box? And a cold air feed going to it? Just proves the point. Surely? 

[Kneepad]

Just replaced my panel filter with a new one and increased my ins.cons. from 21.5 to 25mpg. 

It was honking, must've been in there for years. 

[i260]

put in a std filter, get a twin pipe back box from eternalexhausts for about £35 and then spend the cash you have saved on a remap if you actually want some performance gains.

[humbucker]

you can always isolate a cone filter either inside appropriate size air box or install a plastic/alu isolation chamber with a dedicated cold air feed going to it. otherwise not a lot of point. they look shit too. stick with the panel filter 

....er, has it not already got an air box? And a cold air feed going to it? Just proves the point. Surely? 

no, the idea is to provide an additional cold air feed or reroute the existing one. and a cone filter/open induction kit doesn't usually sit inside a partition or airbox; theyre usually left exposed in the engine bay sucking in all that hot air, which as we know is daft on these engines.

sealed induction kits are ok on the v6, improvements of 1 - 5 bhp and smoother acceleration have been claimed from the cold air feed mod.

[jerry]

fitted the bmc filter to the prelude when I had it (along with a unichip and remap and other mods that the better half gave me severe earache about ) and-provided you ensure cold feed-you probably get about an extra 5bhp. TBH, the mod that was most value for money was the dastik unichip and remap that gave me an extra 10% (can get closer to 20% on turbo engines) without any decrease in fuel economy and general improved performance and feel. You can spend a fortune on HT leads/iridium plugs/sport exhaust systems/lightened flywheels then more on uprated brakes and suspension etc but you will never get your money back and the gains on each are marginal. OK, youve sort of personalized your car, but at what cost?