K&N Air Filter

Do they add any HP??? Really??? Anybody with expierence with this.

 

Which one is for 328?

-1980 Ferrari 308 GTSi/GTBi K&N
-1981 Ferrari 308 GTBi K&N
-1982 Ferrari 308 GTSi K&N
-1983 Ferrari 308 GTBi K&N
-1983-1982 Ferrari 308 K&N
-Ferrari GTO K&N

They seem all the same!

Do you also have the complete set for the filter care?
Thanks
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Depends upon the car and what other mods have been made. For example, a more free-flowing exhaust may put added demands on free-flowing intake.

HOWEVER, the add will be small (if not zero) and the filters will allow more dirt into your engine. That's not a trade-off I can recommend. It is possible to build higher flowing filters without letting in more dirt... I recommend you look at alternatives to K&N.

 

If any of you want K&N filter, I can get it for you. My friend just open up a shop for high performance parts. He allows me to sell stuff at wholesale+tax. I just bought a dropin K&N filter for my 330i ZHP for $38(tax included.) Email me if I can be of any help.

 

Several local FCA members and myself did the research to find all the available K&N part numbers for Ferraris...they are listed here:
http://www.ferrariclub.com/faq/knfilter.html

In addition to supporting our sponsor Dave at Sodacom's...you can also find these filters at:
http://www.performanceintl.com/shop/model.cgi?comp=kn&make=FERRARI

Two other popular filters for newer (348,355,360,456,550-575) Ferraris would be the BMC filters and the ones distributed by Tubi Style USA.

Regards,
Dave

 

33-2518 is the one you want. Not listed at
http://www.performanceintl.com/shop/model.cgi?comp=kn&make=FERRARI

But if you email them, they will give you a price and delivery time. I think I paid around $38 delivered.

 

I picked mine up directly from K&N a week ago. My dyno runs showed me 6hp and ~8 ft/lbs over the stock paper. In my application it works pretty good. 85 Euro Tr with some pretty simple plumbing posing as an exhaust system.

Kenny K.

 

Note: 6 HP is not above the noise level of a typical dyno and represents only 1.5% gain.

 

In other words, there was virtually no gain with a K&N filter.

And I'll say the same thing about Tubi exhaust.

Manufacturers claims of 'noticable' performance increases from these products are false, as far as I'm concerned.

Save your money, and don't spend it on the above mentioned items. Put that money into known and verifiable equipment that will definitely increase the performance of your car.

 

I advise investing in higher quality equipment if what you're accustomed to can't find 6 HP reliably.

 

Performance was not the primary reason for buying a Tubi for my Ferrari, I purchased it for the sound. The stock exhaust was very boomy and fatiguing to live with. I totally agree that the performance benefits of a Tubi exhaust are minimal, but that does not eliminate all reasons for thier purchase. Many love the look of all that polished stainless steel, for example....to each their own...

If all purchases needed to be "practical"...would we even be driving Ferraris??

 

Thanks Dave.......I'll try

 

I run K&N in all my cars. Never wash & re-oil but replace. For an extra few hp I do it.
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If you took a single car to the dyno every day for a month and kept the fuel constant and applied standard corrections for air pressure, humidity, and temperature, that dyno would still show a 3% change over the 30 different runs. It is inherent in the noise level of the dyno.

 

I also invested in the Tubi only for the sound. I am not sure if Tubi actually claims there is a HP benefit installing their equipment. They only weigh less than the factory for my application.

 

Oh yes, Tubi makes some very outlandish claims of a 7% increase in hp! Can you imagine? That would be 18hp on my 328...impossible.

 

If you run your car with a K&N please go and removed it right now, they let many particles go trough and those will deteriorate your motor, also there was an article where a K&N air filter actually made the horsepower dyno results lower than with the stock air filter. The tubi might not do much or anything at all in the performance side but the sound and looks are worth it to me and also I replaced the cats with tubi test pipes and then I did notice a difference from the get go in my Testarossa, it felt more responsive from low rpm all the way to redline. I wouldnt know the difference from just stock exhaust to just tubi with no test pipes since I bought the car with the tubi on it already, I added the test pipes after.

 

paper filter smaller particle. Focus on intake air temp and intake manifold temp reduction for more power with no cotton gauze ring wear..

 

Dave-

I understand what you're saying and I agree. I have friends that have installed Tubis for the same reason.

I'm not putting anyone down for their priorities, but for me, I'm not willing to spend a couple of thousand bucks just for a sound.

However, if I ever needed to replace the exhaust on any of my f-cars, I'd definitely go with Tubi. They're not that much more expensive than OEM.

 

Well, my buddy intalled Tubi on his 360 and I fell in love with it. As a matter of fact when I installed mine in December of 2003, I put some serious miles on the car afterwards. I just love the way it sounds, it just enhances the driving experience.
Just noticed the TubiStyleUSA.com claims a 7% HP increase over OEM. That is pretty cool, can they claim if there is no gain at the Dyno? I am investigating...

 

Tubi can claim whatever they want....until someone sues them for false advertising/claims.....I imagine they can come up with an instance or two of a 7% increase...but I seriously doubt that they have data to prove that consistantly. If they could, they would be selling WAY more exhausts...and possess some mighty special technology!

I can see them backpedalling now....oh we meant 7 HORSEPOWER increase, that was a translation error from Italian...

 

Not where I work.

I would think that a Dynojet, which is what we're usually talking about in the realm of owners testing their cars (I don't like 'em, but I AM a fan of making dyno data more readily available), if you can keep the tires hooked, should provide very good repeatability as well. If we're talking about a dyno someone bought at some salvage auction, and set up in their pole barn, I'd have to know the person & their process before I'd care to comment.
On what dyno are you basing your 3% repeatability expectations?