aftermarket exhaust

[88dunerider]

hey guys so im lookin at gettin some after market exhaust for the 400ex i just got , its got a 440 big bore and stage 3 hot cam in her right not just wondering what would be the best exhaust to get for more power.

[bkelley]

You're going to get a bunch of people recommending the Curtis Sparks X-6 full system.

[riotact]

Or HMF

[88dunerider]

well i was either goin to go with fmf or white bros , dont know anything about 4 stroke exhaust been a 2 stroke guy all my life

[flyboy1294]

Well if those are your two options, I'd go with White Brothers if you can find one.

[bkelley]

Agreed, I love my E-Series. Rocky Mountain ATV has some listed for a CRF450r but I'm sure it would work for the EX.

Here's a link to it. (http://www.rockymountainatvmc.com/vehicleSelectProd.do?prevVehicleType=2&prevMake=4&prevModel=&keyword=WHITE+BROTHERS&vehicleTypeId=2&make=4&model=727&year=&navTitle=Exhaust&navType=type&webCatId=18&webTypeId=57&prodFamilyId=6847&stockId=&listingId=&uri=%2FproductDetail.do#vehicleSelect)

[JOHNDOE83]

Go white bros for sure, unless you want to spend the money for the full sparx exhaust.

But for the price and perfomance, best bang for the buck, white bros....

[Wr3sTl3b0y]

you guys think the baffles are a good thing to put on the e series white bros i havnt had em on in a while

[PaRedneckRiders]

personally not a fan of hmf
but i am a big fan of fmf and curtis sparks, both my 400s have white bros. 1 with an e-series and 1 with and r-4 and never had problems with them they both sound good and give it more overall power
havent owned an fmf but have ridden a couple quads with fmf and there . . . ok
but they sound really

[TRX01]

i really like my big gun pipe but the curtis sparks pipe is suposed to be the best pipe you can get for a honda

[bkelley]

Originally posted by Wr3sTl3b0y
you guys think the baffles are a good thing to put on the e series white bros i havnt had em on in a while I've always wondered the same thing. Mine didn't even come with any plates.

Also, here what my E-Series sounds like if you're interested, dunerider.

http://www.youtube.com/watch?v=sPKl7POQYSE

That's with a 450r carb, no airbox, no plates and my pipe needs a re-pack. So I'm probably considerably louder than a normal E-Series.

[Wr3sTl3b0y]

mine could use a repack most definetly but its so beat and banged up from racing i dont know if i could manage to do it

[clemsonteg]

Originally posted by PaRedneckRiders
personally not a fan of hmf
but i am a big fan of fmf and curtis sparks, both my 400s have white bros. 1 with an e-series and 1 with and r-4 and never had problems with them they both sound good and give it more overall power
havent owned an fmf but have ridden a couple quads with fmf and there . . . ok
but they sound really

just curious, why dont you like hmf?

I like the white brothers e series but can't find one anywhere. My fmf sucks.

[bkelley]

Originally posted by clemsonteg
just curious, why dont you like hmf?

I like the white brothers e series but can't find one anywhere. My fmf sucks. Check out Rocky Mountain ATV. They have some E-Series in stock, but they are listed for CRF450r. Pretty sure it's the same canister, though.

[Smithykid14]

Hmf pipes are a good pipes, the white brothers is a good one too. Hmf no has a Compition pipe with different sound inserts, you might want to check it out if your interested in HMF