I've had the Energy Suspension bushing and Amsoil tranny fluid for about a year and they did improve things. I installed the MGW yesterday. Wow! what a difference. Now I know what all the praise is about. No NVH either. I should have done this a lot sooner.
'13 5.0 PW Premium / E-Force Supercharger w/ Brenspeed tune / FRPP Recaro's / GT500 quad exhaust / DSS Aluminum / Stop Tech 6P 15" / 13" rears / LP over axels / MGW / Moroso separator / 3:73's / Forgestar F14's 20x9/20x11 w/ Nitto Invo's 275/35's & 315/35's / Steeda Sport springs / Koni STR.T's / Steeda PHB / GT500 Spoiler / Roush upper and lower grills / Stillen front splitter / Boss steering wheel / Alcantara shift and brake boots / 10" matte black racing stripes / Rocker stripes