wat exhaust combo other than straight pipes is the loudest for an 02 4.6

 

IMCO Extreme or Flowmaster 40 series.

 

if u want LOUD and a good sounding exhaust i would recomend high flow cats [2], and either a imco extreme muffler or flowmaster 40 muffler, that will be LOUD and still sound good. If u got rid of all 4 cats it would be even louder but won't sound near as good.

 

I say a off road Y pipe and a 1 chamber flowmaster.