flowmaster 40 series tone change

i had 40's with an H pipe on a bone stock 318 duster(2 1/4" pipe) that sounded great. yesteday i just ordered some jones full boar mufflers( exact fm40 copies for $40 a piece) that i will be putting on my truck with a bone stock 318/ no H pipe(2" pipe). well see how that works out till i add a H pipe.

IME an X/H pipe on any exhaust will even out the tone to a degree, esp. FM's as their not the greatest flowing mufflers.