HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
mxbuz

Bike Noise

11 posts in this topic

I'm ready to buy a 06 YZ450F but, where I ride they require all 450's run a FMF Q,Q2 exhaust. I keep hearing that the 07 is Quiet. Do you think it is as quiet as the Q2? They will do a test on the pipe to see if it will meet the noise level. Maybe I should get the 07 if I wouldn't have to buy a new pipe.

Any thoughts!!

Share this post


Link to post
Share on other sites
I'm ready to buy a 06 YZ450F but, where I ride they require all 450's run a FMF Q,Q2 exhaust. I keep hearing that the 07 is Quiet. Do you think it is as quiet as the Q2? They will do a test on the pipe to see if it will meet the noise level. Maybe I should get the 07 if I wouldn't have to buy a new pipe.

Any thoughts!!

require all 450s to run a FMF quiet exhaust? unbelievable.....I hope you have more than one place to ride

Share this post


Link to post
Share on other sites

Shoudn't matter what brand of pipe as long as it passes a sound check if they want to be that picky. A couple of weeks ago at a local track a couple of guys were chasing each other around one on an '06 the other on an '07, the '07 was considerably less loud. I don't know if it is FMF Q,Q2 quiet, but it was one of the mellowest sounding bikes I have heard yet.

Share this post


Link to post
Share on other sites

It was probably the stock pipe on the 07. The diameter on the exhaust is substantially smaller and drastically cuts down on the noise. First time i saw the white 07 on the track it was one of the first things i noticed, quiet.

Share this post


Link to post
Share on other sites
First time i saw the white 07 on the track it was one of the first things i noticed, quiet.

One of the many reasons I bought one.

It's not in yet, so I cannot attest to the noise level, should be an awesome machine. :cheers:

Share this post


Link to post
Share on other sites

I ride an 07 yz450f and its very quiet. I had a yz250f and a yz450f, both 2003's and both with exhausts and the 07 is way quieter than both of them. I've heard its around 93 db? I dont know exactly but I can say that its so quiet when riding that I can hear the rest of the bike, like the chain and the engine, rather than just a really loud exhaust. I like the way it sounds, has a nice aggressive tone, its just quieter than a lot of bikes.

Share this post


Link to post
Share on other sites

I doubt its 93 decibels. Putting around, the 07's are fairly quiet but when you open it up they aren't. My neighbor can hear me coming from far away. I don't doubt that they are quieter than older models but I'm sure you still have to modify the exhaust to meet noise requirements.

Share this post


Link to post
Share on other sites

I have an 07 450f and yes as everyone else has said it is very quiet. In this months TransworldMX (I THINK) the issue with the 450f shootout they said the yamaha was around a 93.7 if i remeber correctly. Which is like 3 decibles lower than any other stock bike. Im guessing with a Q2 it would actually make it a little louder...

Share this post


Link to post
Share on other sites

Unfortunately I am not a 07 owner, yet, I have seen a reading of 96dBA for the stock exhaust system in 2 different reports and have had back up from a new owner. I know the diameter of the opening is smaller, is the packing used any different from the older models? I was thinking of some material like the high end new packing I have seen out.

Bill

Share this post


Link to post
Share on other sites

I will have my bike hooked up to a db meter pretty soon for inspection. I will post the results.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0