Jump to content
Sign in to follow this  

White Brothers R-4 exhaust

Recommended Posts

Just bought one primarily for the spark arrestor so I can run Enduro's. What does this thing do to the power and how loud is it?

Share this post


Link to post
Share on other sites

It's loud. Real loud. Really real loud. The power's good though. big boost in the lower end of the curve. Tapers off a bit on top, but I still think it's stronger than stock.

The spark arrester I got with mine has a cute little "quieting plate" built in that's really high tech. (It's a washer) :cry:

Still, it's a good power pipe if noise isn't an issue, and I didn't pay much for it.

Share this post


Link to post
Share on other sites

Typically noise isn't an issue where we ride and since I've moved to a 4 stroke the lapped ridders get out of the way quicker when they hear this yz rumbling up behind them. Maybe they will move even quicker with the R-4-nasty barking at them.

Share this post


Link to post
Share on other sites

If you want to take a few dbs out of that pipe, Quiet Products makes a simple end piece that diverts the sound to the ground. It fits inside the very end of the pipe, so it looks like it reduces the diameter by about 1/4 inch or so. Nice looking chrome finish too. You can find them at www.quietiscool.com

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

Reply with:

Sign in to follow this  

×