tti 2 1/2" from manifolds to mufflers
The engine pipe as stated is 2 1/2", and has the "H" pipe. Someone PM'd me w/question about the Flowmasters. Im not sure which "kind" they are, I never ordered them or saw the box as system was installed new on my car prior to me purchasing it. They were slightly louder than the DynoMax we installed this spring..
The mufflers are still attached to quite a bit of engine pipe, they are welded (normal for Flowmasters) so you can use as much or little of the pipe as you need. I can either cut the mufflers off, or you can take all the connected pipe at no cost.