[LilRed06]

So ive been looking at exhaust and ive decided for either flowmaster 40 series or 40 series delta flows..anybody know the difference between these two? I cant figure it out personally but i have no idea about exhaust. also anybody know the dimensions of the factory exhaust? im pretty sure the pipes are 2.5'' going into the muffler but just want to make sure. Thanks pplz

 

[RCsTundra]

I believe the factory pipes are 2 3/8".

Magnaflow is 2.5" in / out

 

[Mafix]

+1 2 3/8 Diameter Pipe

 

[GORILLA]

hi, i hope you left the Y pipe in place for back pressure.
gorilla

 

[SuckersWalk]

the delta flow will be a little quiter inside and outside the truck, but will allegedly scavenge better than the original 40s. the first pic is of the original 40, and the second of the delta 40.