changeing the exsaust out have a few ?

[ozman2000XLT]

well one or more cats are going out on my 2000 ford explorer xlt 4.0 sohc now id like to get rid of the 5 cats that it has and maby go to one or two cats and a muffler n ow im looking for sound not too loud and deffianently not a rice burner but id like performance to i already got the cold air intake in witch i love that and the gas mileage was great intill i got the bad cats but id like some opinions or suggestions on this thank you

 

[ozman2000XLT]

wow just get off work and cant spell but if any one knows about moveing o2 sensers around or bypassing some and keeping others