If you wanna leave the wheelwell cover off go ahead. I still don't recommend it. I think people get to obsesive with cooling though. All I have is a tranny cooler and I also have my remote filter right next to the engine on the battery tray and I've only hit 150 degrees on my tranny gauge and that was in 87 degree weather and I was giving it hell. I'm just saying alot of stuff is unnessecary and you don't wanna have your tranny fluid too cool or it will be counter productive. But to each his own. Your fenderwell cover protects shit more then anything, and I wouldn't drive mine the way I do without it.