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McMaster-Carr Supply Co - Distributor for BTI Tools

MSC Industrial Supply
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The Cyclone Ultra Filter design uses centrifugal force to keep dust and dirt out
 of the filter element which increase filter life.
Remember! You get what you pay for. This is a very high quality, well engineered component, crucial to the performance and longevity of your high performance engine.


  80% increased air flow as compared to single inlet filter systems.
Inlet Ports give 80% Flow Efficiency, no oily foam outer required
Velocity fins remove up to 85% of the incoming dust before it reaches the filter.
No oil required on the filter element, which can cause damage to engine sensors.
Filter element removes up to 99.99% of the remaining dust in the air before going into your expensive engine & components.
Filter element is easily removed from either end.
Filter end caps are machined from a single piece of high strength 6061-T6 billet aluminum. Not spun aluminum!
Modular design, parts can be changed to increase or decrease the filter size.
No drilling required to mount filter. Mounting clamps included.
Available in 12” length
(p/n CF-812 series) or 15” length (p/n CF-815 series).

Filter Application Guide
Minimum Requirements


Recommended Filter 

4 cylinder engines: 

  (1) CF-812-3 or CF-812-4

6 cylinder engines 

  (1) CF-812-4
or Stock LS1: (1) CF-812-4 

Modified LS1                 up to 550hp: 

  (2) CF-812-4
or Stock LS2: (1) CF-815-4 

Modified LS2                 up to 550hp: 

  (2) CF-812-4
or Over 550hp: (2)CF-815-4


12" Lg Buggy Filters CF-812-3 - 3" Intake x 12" Lg | CF-812-4 - 4" Intake x 12" Lg

click here for a Buggy/Race Filter Prices

Dual Mounted CF-812-4 CYCLONE ULTRA Filters

CF-815-4 - 4" Intake x 15" Lg
Shown: LS2 using (2) 12" Cyclone Ultra-Filters

Polaris RZR 800 Cyclone Filter Links below.



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