jeffw666

I don't seem to find a K&N air filter that fits a 05 CL65..... any other alternatives out there?

IngenereAMG

I believe Green Filters makes one.

t3flondon

Does anyone have a good alternative for the stock filters for the 2003 CL55, I had 2 K&N ordered but reading the forums scared me offof keeping them.

TMC M5

BMC makes a set of drop in filters which I have on my car. They cost about $200 shipped. I have an extra set (unopened) I would be willing to part with. Send me a PM if you are interested.

http://www.bmcairfilter.com/VisCart.asp


Tom

Patentmat

I have used K&N for about 2 years now, keep them oiled, all is well. That said, if anyone knows why these BMC filters are better I might consider upgrading. Thanks,

TMC M5

Not sure they are any better than the K&N's. The problem is that K&N never made filters for the twin turbo V12 (at least the last time I checked).

Tom

t3flondon

that is what everyone keeps telling me to stay away from the K&N because of the oil, they say it will mess up something, but you have used them for 2 years, any problem with them, I have them on my Acura NSX and really like them.

Patentmat

No, I have had no problems, and I have actually not had to oil them again, I just checked to make sure they looked good. I put em on in September 2007. The only difference I noticed on intake was you can hear some kind of blow-off (like a Subaru STi redlining the 1-2 shift) if you tip the throttle pretty hard from a slow speed, particularly if you have it in comfort mode (215 model). It is one of those things where I dont THINK it was making that noise from before I made the changeout, but I didn't have the car that long before switching so I may have just not noticed. Sorry this does not help with the CL65 issue.

t3flondon

Did the K&N seem to give you better performance?

ohlord

50 bucks a set use oem filters.They out flow k/n.Let far less dust through,and
no worries about oil.
Autohausaz.com has them for both 55's and 65's
K/N and green are snake oil
$200 for what ever brand mentioned is a pool of snake oilwhat do they do worth 200 bucks?Except make your wallet thinner

TMC M5

Umm...I think it has everything to do with the fact that the V12TT filers are very unique in dimensions. You have no clue what you are talking about....your speculation is unfounded. Here is a link showing the stock factory filter next to the BMC:

http://www.absolutelydriven.com/foru...ghlight=filter

Tom

sound 8

Absolutely, snake oil/ the kings new clothes. I fitted K&N to my 55 and felt
no difference. And it's a bit rude to say you do not have a clue!! them insults
again. OK where is the proof that changing to BMC or K&N filters significantly
increase your horse power, just another trinket for the list of pointless
purchases. Please let's have proof not insults!

TMC M5

On a V12TT it has dynoed 10hp to the rear wheels..I can dig up a dyno for you...

His tone deserved the response he got.... you reap what you sow.... (and that goes for you too)

Tom

Patentmat

I think the only difference I mentioned was a change in the sound. Even if there is a 10HP gain to the rear wheels on a V12TT, what would that be about 2%? You gain and lose more than 2% depending on the level of your gas tank. However, if you want to shave a % or two off your ET, then more power to you, (assuming TMC M5's data is correct and there is an increase in HP)

JAYCL600

TMC M5

Every little bit counts...especially at the track. In the world of MB performance, $200 for aftermarket air filters is a performance bargain. The MB OEM filters from the dealership cost $86 out the door. So for $110 over stock (shipped price of BMC filters is $196), you get a reusable filter that nets you 10 rwhp. Remember, this is on a dyno with not the greatest air flow. In the real world as speed increases there would be increased airflow and possibly more ponies to be had. That 10 rwhp is kind of a minimum starting point. Where else are you going to see that kind of $11 per HP increase over a disposable maintenance item??

True, you can "gain" a weight savings and improve your power-to-weight ratio by having less fuel (gasoline weighs approximately 6lbs per gallon). But that argument is moot because you will be getting the benefit of both when you run at the track (unless you like carrying extra weight for no reason). So in effect that 2% rwhp increase is seen in conjunction with a 2% weight savings. This only further improves the performance of the car.

Tom

Carl Lassiter

Can members be banned for sheer stupidity? If so, the bell is chiming "sound8," a member who has annoyed nearly all who have encountered his childlike posts which achieve nothing other than giving readers a bad impression of the English.

Now, on topic, I've been impressed by airflow charts posted after BMC fitment. I've also heard good things about K&N, though some complain about their oily-ness. The gains from either one are small, but small gains are what it's all about at the drags.

ohlord

Tone?
http://www.autohausaz.com/search/pro...2@Air%20Filter
A.$50 a set
B.I know what I speak of.
C.You are another of the more money,must be better ilk.
D.At 604 H.P. 10 H.P. is statistically a Non sequitur.
E.look it up if you don't comprehend what that means.
F.Is that the proof of what spending 200 bucks on a set of air filters results in?Is that your dyno run?I am so glad that you can either afford to own your own dyno or that you pay for dyno time,to prove a blip in RWHP that could simply be accounted for in the 1.14F difference in temp or even how the operator of the dyno brake throttled up the engine.
G.Someone needs a clue.Begin your search at the hall mirror

P.S. that link. another guy that really needs a good look in the mirror to help find a clue."Good volume to the air box" You be sure to follow him in line for your sprintbooster,Those are only about 3-4 hundred dollars of snake oil for what even the maker claims is only the feeling of more power.
Okay?Okay.
Next

JAYCL600

^^thats the funniest rant Ive read in a while, thanks for shraing.

TMC M5

First of all, spending $110 over and above what I can get the OEM filters at my local dealership isn't "big spending"...at least outside of a third world country.

Secondly, we are talking REAR WHEEL HORSEPOWER not the manufacturer's figure at the flywheel, which you quoted.

I am sorry to break this to you, but you have no knowledge of the V12 TT platform. There aren't very many options out there for performance intake upgrades. The only option until recently is a RENNtech air box which they charge $5,600 for and claim an additional 15hp at the crank...you would have thought by your comments that I was advocating that purchase...

No that isn't my dyno run...the person who did it bit the bullet to see if an air filter made any difference in performance. He was tired of people using their butt-dyno as the determinate of whether a performance mod works or not.

If you would look a little closer at the dynos you would notice that the run with OEM filters was done in slightly lower humidity and ever so slightly better barometric pressure. When you correct these dynos to SAE, the aftermarket filter run is corrected upward 1.2% and the run with OEM filter is corrected upwards 1.1%. So peak SAE corrected is 528.51rwhp for aftermarket filter vs 518.60rwhp. Thank you for pointing out both a further advantage (albeit small) of the aftermarket filter...and your lack of knowledge.

http://wahiduddin.net/calc/calc_hp_dp.htm

Tom

Patentmat

I only mentioned performance gains in comparison to the weight of the gas to illustrate how small 2% is. Of course the 2% would not suddenly disappear when you boosted performance further by say removing the spare tire, draining fuel, getting lighter wheels to lower rotational inertia, etc. Yes, obviously it all adds up, and based on those dyno results, if I were eking out every less tenth of a second, I'd throw on the aftermarket filters, despite what looks like a hit to low end torque.

TMC M5

Unfortunately, it is extremely difficult to get a tach signal on the V12TT platform. Measuring torque on a Dynojet requires the engine's RPM to be measured (most use an optical pick-up on the crank pulley which takes a good 1/2 hour to do after unbolting the engine tray). In these instances the dyno operator's technique has alot to do with how HP is plotted over speed on a dyno run. The dyno operator actually did a decent job of consistently starting low (most times the car likes to downshift when starting at such a low RPM ...even in manual mode).

Also, you will notice that we are looking at runs 6 and 8 in a span of 17 minutes. Changing the filters is a 5-10 minute activity because you need to unscrew a number of bolts on each airbox. There was also apparently a run #7 in between. So the car probably wasn't totally cooled down. That could be causing the minor "hit to low end torque".

Tom

Patentmat

Sounds reasonable Tom. I thought the data looked a bit off there. Bottom line, it looks like these things work, although people have apprehensions about the oil. On a personal level, I wish we had some 55 data to go alongside that 65 data.

JAYCL600

If there was any measurable reduction in low end tq you would be literally talking about 1-2lbs ft. Every little increase in HP bit adds up and filters are just part of the equation, and in my opinion 10HP was more then I had expected. I dyno each and every modification on my car so I can see the before and after gains as most of my mods were "experimental" When I did this filter mod no filters were comercially available for the V12tt. I measured them myself and modified a universal KN filter to fit. I also had an exhaust system hand fabricated which have the car another 14+hp to the wheels and 37hp under the curve. There is/was no full exhaust system available for the V12tt's I also was the first to add a larger reservoir to my trunk, with ice netted me another 15+ rwhp. The most I have dynoed is 555rwhp, but I have done a couple of other things since then that should put me close to 570rwhp currently. So in the grand scheme of HP, that 10HP is a major part of the overall equation.

TMC M5

Most of the problems I have seen for these type of filters is that the oil fouls the mass air flow (MAF) sensors. I know the V12TT does not have MAF so it isn't a concern, I am not sure about the 55K..

Tom