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
Superbike

96 DB pipes versus insert?

7 posts in this topic

Tried the Thumper racing baffle in my bike this weekend. What a turd! It took away all the rev and made my pipe turn brownish from the heat! I want to pass a sound test but need something better than this. Is there a pipe that is less restrictive and gives good performance without being so dang loud? I do not want to ride it this loud on the trails but may have to. The technology has to be out there somewhere. :) I guess the only way we can have performance and quiet is go back to 2 stroke???? I am so bummed. ----Mike

Share this post


Link to post
Share on other sites

Mike- I talked to Big Gun and they claim that their pipe with the quiet core is only down about 1 hp compared to their race core, and keeps the wr450 below 96db. I have Pro Cirquits new quiet pipe, the 496, on order. They also claim good things. We'll see. I'm with you, I'm not willing to put a cork in it, but it looks like the after market is starting to come around.

Share this post


Link to post
Share on other sites

GYT-R makes a insert that is supost to be good , i run a PRO MOTO insert [ for stock pipe ] the bike runs great it dosen't seem to affect things , i used to run the stock pipe uncorked but this thing works and dosen't make much more noise comparied to the stock baffel . still makes good power ,

Share this post


Link to post
Share on other sites

The baffle insert is a band aid to a good pipe. I would recommend to anyone to get a pipe designed to handle the volume and keep the noise down. You are about to see pipe mufflers getting larger with several stages of expansion to get the performance we are all demanding and the noise that the state is demanding. : :)

Share this post


Link to post
Share on other sites

I had tried to run my YZ426 exhaust with a ProMoto setup and quiet insert on my WR450. The WR ran great. On my YZ it tested at 96.7 db (4500rpm) On the WR it tested at 99.2db (4250rpm). I thought the packing might have burned out so I took the silencer apart and it looked good as new, can't explain why it's higher. Yesterday I bought a ProMoto insert for the stock WR exhaust, it killed the performance but it is quiet. How about the exhaust manufacturers making a real muffler like they use on the dirt track milers? I believe a muffler like a "Flowmaster" could get the bikes quiet and still have performance.

Share this post


Link to post
Share on other sites

I am leary of the Big Gun stuff. They are built cheap like the FMF stuff from what I have seen. The Thunder Alley could be good. The pro Circuit could be great. What about the Yoshimura with the TEC inserts? I heard it is 96 DB with the mid size one and still rips. CRD is out of the loop, they can not get pipes. These inserts in the stock exaust suck. I really want to find somthing to work. I can only afford to buy once, so I have to be carefull! ---Mike

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