I installed ARH 1 7/8 Long Tube Headers along with a Diablo Tune, 180 Thermostat and a catch can. The truck became super sluggish and lost ton of power more TQ than HP. It feels like an inline 4 ridgeline with a V-TECH.
The best answer I have gotten to fix this solution was to put the stock Manis back on the truck. I would love to put a $9000K Supercharger this 5.7 Hemi but that's not possible for right now. Please comment below if you can assist with this issue. I like to keep it N/A. The muffle in this video was a Flowmaster 717847 Flow FX.

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