Timless question: Can you fit 33\'s on a stock C20 sub? The answer is yes, if you don't like your front fenders anyway. last night, I stuffed the 33x12.5R16.5's from the K20 under the C20, since the C20's wheels are shot, and the K20 is parked for now... nipped the front corners off the fenders, and from what I can tell, I need to nip a little more, or whip out Mister Sledge hammer, and make a few more `Adjustments' to the rear corners of the front fenders. the biggest positive improvement from putting these wheels under the C20, is I now have a poormans overdrive for cruising at freeway speeds. ( this doesn't work right, unless you have a bigblock to overcome all the additional strains of rolling taller rubber) tonite, I break out the hammer, and finish fixing the fenders... shouldn't have any more trouble with rubber spiking metal after that.