DT-1 Air Filters support following teams in 2012 :

*Red Bull Ktm Factory Racing Team
   Antonio Cairoli MX 1 ( Worldchampion MX1 )
   Max Nagl MX 1

*Monster Energy Yamaha MX Team
   David Philippaerts MX1
   Steven Frossard MX 1
   Christophe Charlier MX2

*Husqvarna Ricci Racing Team
   Alessandro Lupino MX2
   Nick Triest MX 2

*KTM Scott Racing Team
   Lars Oldekamp MX 2
   Valentin Guillod MX 2
   Even Heibye MX 2

*Nestaan JM Racing Ktm Team
   Jake Nicholls MX 2
   Pascal Rauchenecker MX 2
   Glen Coldenhoff MX 2

*Rockstar Bud Racing Kawasaki Team
   Valentin Teillet MX 1
   Dylan Ferrandis MX 2
   Livia Lancelot WMX
   David Herbreteau EMX

*STR Ktm Team
   Nathan Parker
   Matiss Karro

*Motors France Yamaha – 2 B Team
   Gregory Aranda

*Buildbase Honda Racing Team
   Nicolas Aubin

USA :

*JGR Yamaha (450)
   James Stewart
   David Milsaps

*22 Motorsports Honda (450)
   Chad Reed

*JWR Kawasaki (450)
   Josh Grant
   Kyle Chisolm

*Motoconcepts Suzuki (450)
   Mike Alessi
   Jeff Allesi

*BTO Suzuki 450
   Michael Byrne
   Jimmy Albertson
   Jason Thomas

*JDR KTM (250)
   Malcolm Stewart
   Matt Moss
   PJ Larsen
   Ryan Marmont

*Rockstar Suzuki (250)
   Blake Wharton
   Jason Anderson
   Hunter Hewitt
   Martin Davalos

*Valli Yamaha (450)
   Austin Stroupe
   Ryan Morais
   Nico Izzi

*Star Yamaha (250)
   Gareth Swanepoel
   Kyle Cunningham
   Ryan Sipes
   Kyle Peters

*Motoconcepts Honda (250)
   Tommy Weeck
   Jake Canada
   Vince Friese

*AG Motorsports KTM
   Gannon Audette

*HRT Kawasaki (250)
   Matt Lemoine
   Nick Meyers

*SVM Kawaski (250)
   Casey Hinson
   Eric Mcrummen

*Team Tedder Monster Energy (250)
   Dakota Tedder
   Miles Tedder

*51/50 Energy (250)
   Chris Plouffe
   Preston Tilford

*RF Motorsports
   Chris Howell
   Collin Jurin