I have a first gen Sonoma with a 2.8 and i am currently using my dirt bike air filter on it, it's a huge improvement. I took my filter and lid off and just put the new filter right where the old one was and put the wing nut on. It helped a lot. I was runnin a cone filter put on the end. I raced a 4.0 ranger and lost with the cone, i switched to the dirt bike filter and smoked em off the line and grabbed 2nd early to stop spinnin and immediately caught up and blew away the ranger.