hmf or lrd

[81 clark racing]

what would you guys rather have an why lrd or hmf? also which one is louder? i want to get one of them for my 05 400ex,id rather have the quiter one thanxs

[jeepguy46126]

I dont know about the hmf but i have the full lrd pro 4 system and it is very loud. Sounds good, but loud. I did notice nice power gains with it.

[gcart2]

i would say hmf. hmf are very deep and as long as you keep it packed its not loud at all IMO.

[mooseracerX]

I'm going to be getting an LRD full system. It says 99dbs I think I'm going to get the quiet core too. With the 1st LRD I had there was great gains over the stock.