seems as though everyone goes with a muffler that has 2 1/2" outlets. you also hear of losing torque once this is done. if i were to use 2" duals would this reduce some of this torque loss but also be better on the top end compared to stock configuration. has anyone else used a setup like this or even a 2 1/4" setup?? any info on this would be appreciated as i plan to do my exhaust soon before my girlfriend spends the money ive (we'ved) saved!!

 

hi , i have a flowmaster single muffler (40 series) , one pipe in and two out. i have two 2.5 inch pipes comming out of the muffler. i was told that with true duals , i would lose alot of torque because there wouldnt be enough back presseue. i think that the 2.5 inch is a good setup for my truck. i didnt feel any lose of torque at any rpm , or point of acceleration , but it feels like it has more torque now then before. im sure you will get a few more replys from other f150onliners.
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99 F150xl , silver frost
auto , 3.55 gears , 4.2 V6
s/c , s/b
sport package
Flowmaster 40 series (single in dual out)
K&N air Filtercharger,
AVS tail light covers , Ventvisor window shades , and Bugflector II bug deflector.
CLICK HERE TO SEE MY TRUCK http://www2.friendpages.com/outdoors/silverf150/