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My local guy recommended an X-PIPE for better blending,when I suggested the H Pipe . It sounded great after the X-PIPE but it still wasnt enough for me, and the GIBSON did the trick, but X-PIPE was great for the 5 days I had it without the AXLE BACK mod. Good luck man!!
With the X you are going 2 into 1 and then back to 2 the performance exhaust shop felt it created more restriction vs staying with true dual exhaust, which seems logical. With the H you are staying with the separation but allowing pressure to balance if needed. If you look at my pics the H won't catch air but only lets it pass if it back feeds. Thus no blending unless one side has back pressure.
I'm sure they sound very similar. Who knows, probably tomAto vs tomahhhto. Lol
I'm new to Durango's. I've had Tam's most of my life and just bought a 2011 R/T because we now have 3 kids. Does the suitcase delete / H pipe add do anything positive or negative toward performance? I know the ram 1500 hemi's lose power with most muffler changes and most guys use mag aglow because there's no noticeable power loss. Have you noticed anything?