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View Full Version : 450R exhaust db level (stock and HRC)



MIA450R
12-27-2003, 02:26 PM
Has anyone read anything mentioning the db level of the stock 450R and the db level of one with the HRC kit?

I know I read one article that said the stock 450R, like the stock YFZ450, is very quiet...but did any of the articles regarding the 450R 1st ride down in Texas validate this or mention guesses to BOTH of these #'s?

My dealer said the CRF450R (dirtbike) is LOUD, even in stock form, and when modded/piped, it gets insanely loud. Due to this, he thinks the 450R will be loud in stock form...

Does anyone know?

HMF-dude, you've dyno'd the 450R...how loud or quiet was it, in stock form and then with your pipe on it?

12-27-2003, 04:35 PM
im sure this will be a loud quad like the cannondales but definately not with the stock exhausts....I am also almost positive it wont be noticeably louder with the HRC kit than when it was in stock form....the engine may have a louder VROOM noise to it...

C41Xracer
12-27-2003, 04:44 PM
i heard 89db stock and 96 or 98db HRC kit. I can't remeber exactly where it was but it was an online test page

Chanman420q
12-27-2003, 05:47 PM
ask harlen he actually saw one race

2004TRX450R
12-27-2003, 09:10 PM
I would be in stock form it will be very quiet. When you take the baffle out of the end of the pipe and install the nw HRC end cap I would bet it is quite a bit louder. With a full aftermarket system or even just a slip on I would be it get's pretty loud.

TCracin440ex
12-27-2003, 10:26 PM
i think the stock pipe will sound like the stock 400ex pipe....they look pretty much the same...400ex pipe was louder than the yfz 450 with the spark arrester in......and the hrc endcap proally sounds like the 400ex with the end cap removed...

MIA450R
12-30-2003, 08:33 AM
This review states around 96db on the HRC endcap...thats about what my 416 with WB E-series measured...not bad!

http://www.atvrideronline.com/web/atv_hondatrx450R_11222003/

Also, one of the editors from ******** (who went down to TX for the initial ride) just emailed me back confirming the HRC-equipped 450R wasn't even as loud as most aftermarket 400EX exhausts.