PDA

View Full Version : Exhaust for 440ex


djwilliams0822
08-19-2011, 07:20 PM
I have a 440ex with stock exhaust. If I would get a powerbomb header with stock exhaust because I like in the city so I can't have it too loud. Will a header give me more power with stock exhaust
01boneless
08-19-2011, 07:29 PM
i belive you should get a silencer for a header a powerbomb wont flow real good with a stock silencer
HondaRacing83
08-19-2011, 09:45 PM
get a quiet core
440ex_rider21
08-19-2011, 09:47 PM
Originally posted by HondaRacing83
get a quiet core x2
honda400ex2003
08-19-2011, 09:52 PM
fmf q4 slip on with a powerbomb header will be your best bet for flow and sound output. just a header isnt going to do anything with the stock canister on it.

steve
djwilliams0822
08-19-2011, 10:56 PM
Ok thanks,
jkosakowski
08-20-2011, 08:19 PM
Motoworks sr4 with quiet core full exhaust!!!
:)
djwilliams0822
08-20-2011, 08:46 PM
How loud is the q4 exhaust vs stock.
honda400ex2003
08-20-2011, 08:49 PM
about 2 db over stock so around 90 db. maybe 91. 88 is stock even a motoworks wont be that low imo.

steve
djwilliams0822
08-20-2011, 10:35 PM
Is the lexx mxe a good pipe?
djwilliams0822
08-20-2011, 10:39 PM
Or what about the yoshimura rs2 with the silencers on it? How quiet would that be?
HondaRacing83
08-20-2011, 10:49 PM
what you need sir is a czr pipe. lmfao
djwilliams0822
08-20-2011, 11:14 PM
Haha yea piss neighbors off for 2 or 3 blocks
kt1148
08-21-2011, 12:52 AM
Motoworks is an awesome pipe and they have special pricing on their exhaust now. Check it out, you won't be disappointed:http://www.motoworks.com/catalog/product_info.php?cPath=21_60_25_37&products_id=186
honda400ex2003
08-21-2011, 08:00 AM
lexx and yoshi are pretty loud without a core. the yosh tested out at 95 dB in the shootout that was performed a while back and i know the lexx is close to that if not slightly more. the yosh is supposed to be around 92-94 dB with the quiet core. the core says it is for a 94dB limit so it has to be there for sure.

the t-4 from p-c is 95 dB along with a few others. the key is they are that quiet with new packing and for the first 40 hours or so, then the packing starts to get gunked up and burned and wont work as well. either you have to repack again or leave it a bit louder. repacking is inevitable since it will go bad eventually.

the q4 will be the quietest pipe you will find if you really want something quiet. the rest are all designed to be "race" style pipes, then you buy a quiet core if needed. they sound bad and inhibit the flow quite a bit more than the q4.

i also ride alot of noise sensitive areas and i am very aware of noise from machines. I run a q4 for a reason, so that i wont get hassled for being loud on trails.

http://www.ctracing.com/PD_ct%20photos/dirt_wheels_march_2001.htm
read through that, most of those exhausts are still around and will give you a general idea of what dB you are looking at for the general concensous on noise from aftermarket. the quiet ones are 95 and go up to 102 from there for the most part. check out the chart at the end for the all the specs.

steve