Which Silencer is Best for My 04 WR450

I am looking for a silencer, which one offers the most in performance over stock.Mostly low end power.

I am looking for a silencer, which one offers the most in performance over stock.Mostly low end power.
I bought the FMF Powercore4 and also added the quiet core insert. Got the S/A model (spark arrestor) and its got good power, nice sound and tested at 93 the first year. Its now up to 94, but well under the limit.

dirt rider mag just did testing on several different cans with a wr450 ; dyno graphs and reviews. the new ti powercore4 was the "best value" i run it on my yz and like it over the old pc4 i had,much more linear.

Not the BG EVO X

Been Loud as hell from day one, end cap faded to a ugly off orange/pink in less then one year and it is always garaged

Pro Circuit Type 496, from experience. Also every comparo I've read puts the 496 first.

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