Sweet let us know how it goes!! I told them to dial in my quad the best they can so we'll see!!

 

if your looking for a full system you might want to check out a back issue of dirtwheels mag
they did a dyno test on like 14 different ones. just so you know the three that put out the best power
and meet db levels was the white brothers(they tested 2 e-seriesand rt-4) pro circuit and the CT sonic.
its the march 2003 issue
e-series 19hp @4000rpm 34.1@7000rpm


rt-4 18hp @4000rpm 34hp @7250rpm

pro cicuit19@4000 34.2@6900rpm

ct sonic 18.1@4000 35.3@7750rpm

 

Here's how it is I don't care what anyone else says the is how it is. there is not one pipe that dominate's over another, there all really close I have a bills full pipe and it gave me awesome bottom and mid the z400 already has good top. so it's just a matter of how much money you wanna spend.