Fmf Pc 4 or Fmf Q

[wantablaster]

I need to get a quieter exhaust for my 300ex my megamax is to loud and I just dont like it, so I am looking at the Fmf Power Core 4 full system and the Fmf Power Core 4 Q system. Is there going to be a noticable power difference the two if them im guessing the plain pc 4 will have more power then the Q but will it be really that noticable. Also how much quieter is the Q going to be.

[BlasterEaten250]

I do know that a power core 4 on a predator is over 96 db's. My cousin got tested once on the wisconsin trails, and he was over the limit (limit is 96 db's)