I am getting a performance pack for my raptor. Comes with pro-flow filter, k&n, dynajet kit and the white bros slip on. I have read the article in dirtwheels from a while back and the dyno numbers seem pretty good, good low on up. I am wondering if anyone has these mods and how they helped out? Also, whats the settings you have as far as jetting?

 

Far I am concern I wouldn't even used WB E-serie at all. I used to own one and it pieces of junk! IMO. I went to LRD and that thing really woke up the bike and it does a far better job then E-series. Also other peoples will tell you to go with Yohsi pipe too.

Remember it your money and you think you are going the right way. imo. Have fun.

 

I like my WB pipe. I got the head pipe over a year later and I am even more pleased with the results. It is true about the WB having some weak welds but they will fix it for you free of charge( you pay shipping) Mine is still fine- hasn't broke yet. My cousin's Eseries broke at the weld of the canister. When it came back it was like new with a beefed up weld and bracket to prevent future problems. I went with a Dyno jet kit and put on the biggest jets in the package. Love it!! I run with no lid as well. Yosh is good too.

 

Did they happen to fix this with the newer pipes?

 

This is the first I have heard of the "welds breaking on the E-series". I have an E-series and the pipe is awesome.....power everywhere. Do some research and you will find the E-series is overall the best muffler.

 

How does it compare to other slip ons? I have read dirtwheels so know all the dyno numbers. And how about the sound does it sound good?

 

You can adjust it with the disc system. Mine is good and loud. I really like it. For a slip on it is the way to go, if your going full system the yoshi is the way to go.

 

I have the WB R series and I love it. Great power increase, great sound and it looks good and easy to polish. I'm still running the stock pipes and jetting and getting 78 MPH on flat dirt road. I'll be able to play with the jetting when I get back from the desert.

 

I had an e-series and liked the smooth power with 16 discs. At altitude I would take the end cap off so I wouldnt have to rejet.