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
TallJohn

White Bros E any good?

8 posts in this topic

I had one on my 2000 WR4 and it worked great with only a pilot jet change. Big difference from the stocker in throttle response. Good quality, durable piece, but kinda loud. I tried the quiet core, but it killed the power output. Just my 2 cents.

Peace Eh - P.Z.

Share this post


Link to post
Share on other sites

I've got an E-series on my '98 WR400. It definitely is loud, but I haven't tried any other pipes on it.

Share this post


Link to post
Share on other sites

Hopefully its the S-bend, thats the best for low end grunt, put eight disks in it, it will give you better bottom end and won't be quite as loud.

Share this post


Link to post
Share on other sites

Whats the diff between the E series and E series S bend. I am considering this pipe too, as I will need to quiet down for some off road races, and then open it up for the track. With discs and cores is it flexible enough to change it up with out changing the jetting each and every time??

Share this post


Link to post
Share on other sites

The S Bends pipe that comes out of the front of the muffler is all the same diameter, the other one has a pipe that increases in diameter towards the muffler, funnell shaped, I think its called the Pro Series, it gives more power on the top end and is more for the pro racers.

Share this post


Link to post
Share on other sites

When I had my WR with the E-Series, I found that going from 7 to 12 discs made lots more noise with a minimal top-end power increase. No jetting change seemed necessary even with the quiet core installed. I experimented with the quiet core and eventually drilled the holes in the center of the "baffle washers" bigger. I can't remember what size of drill I wound up with, but I did go quite a bit larger. The drilled core with 12 discs was a bit quieter (by ear) than no core and 7 or 8 discs and ran about the same. In the end I wound up running it with no core and 12 discs most of the time.

Peace Eh - P.Z.

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