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Old 04-20-2010, 09:56 PM
Jason Pallas Jason Pallas is offline
LawnSite Bronze Member
Join Date: Jan 2001
Location: Grosse Pointe. MI
Posts: 1,321
K&n Air Filter on my Kohler CV - 20 = Great!

I forked over $50 or so over the winter and plumbed a couple of K&N Air Filters on a few of our Exmark / Kohler CV-20 machines. WOW! In just the first two weeks I've noticed a huge difference.
The machines seem to have a TON more horse power. They've also been really good on gas - about 30-40% better. I'm just curious to know if other people have gone this route and invested in these high performance filters and if so, what has been your experience?
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Old 04-20-2010, 10:33 PM
rreyn1812's Avatar
rreyn1812 rreyn1812 is offline
LawnSite Senior Member
Join Date: Sep 2008
Location: Central Arkansas
Posts: 444
K&N Air Filters

Did you replace the commercial, two-stage filters? If so, what was the K&N filter you used? I'm planning on replacing my 21" mowers filters with K&N units.
Rick R.

2009 Nissan Titan pullling a 18 ft PJ Trailer
2011 Kubota ZD326S (60") - 26HP Kubota Diesel
2010 Bob-Cat FastCat Pro 48" w/Accelerator (20HP Kawa)
Non-commercial 21" walk-behind
Blowers (Stihl BG85/Husqvarna 170BT)
Trimmers (Stihl KM110 & FS90, Kawa Multi-Tool)
Chainsaws (Stihl MS180 & MS362 w/20 & 24" bars)
& misc hand tools & equipment
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Old 04-20-2010, 11:06 PM
laman laman is online now
LawnSite Senior Member
Join Date: Jun 2009
Location: Louisiana
Posts: 273
I used k and n on a hot street car I had. After it had been one the car for a short while I could see fine holes in it. If this happens on a lawn mower dusty like it is in South Louisiana right now by by motor. I will stick with my commercial setup on my exmark. I don't have money to risk to have to put a new motor on it....
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Old 05-03-2010, 12:31 AM
Jason Pallas Jason Pallas is offline
LawnSite Bronze Member
Join Date: Jan 2001
Location: Grosse Pointe. MI
Posts: 1,321
A few days since I started this thread - just wanted to post a pic of the set-up for all of you. Very easy to do...... gas "mileage" is still great and I've noticed a huge increase in power. I wish I had done this years ago! I would really recommend it.

BTW - that's a shop-vac foam filter that's covering the actual K&N Filter - something I just improvised. Works well.
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