Quote:

Quote:

Larry Sheppard(Mopar performance Engineer) says h should be slightly smaller diameter than exhaust,place 12" after collectors.
will quieten exhaust and make no additional power.



100% Truth!! 2.125" - 2.250" H pipe works WELL in a 2.500" system. For 3.000", try a H pipe with 2.500" - 2.750" INSIDE diameter.





And the other factor to consider is the size of the hole cut into the pipes! Its easy to cut a tiny hole (or NONE---hey, its been done more than once) into the pipes before welding in the H, takes a little more work to cut holes closer to the ID of the H.
And I agree, 1 pipe size smaller, 2.25 on 2.5, or 2.5 on 3" works just fine.