Lexx is a company that copied Yoshimira after their patent expired... basically.
Here is a review.
The Build quality is excellent for a $200 slip on. The sound with the quiet core/spark arrestor in is in the middle between stock and a pipe like an HMF with no quiet core. It gives off a nice low roar to it. The midpipe included is of high quaility, I was able to bolt it on my 400ex in 20 mins. I took it out for a ride that day and right off the bat noticed a substantal gain of low end torque and pull. This is with the stock 148 main and 38 pilot. I got my jet kit from jetsrus 2 days after the pipe and have since then jetted the carb with a 152 main, and 40 pilot. After that I feel I am on a new quad . Oh and I am running a UNI filter with the airbox lid on. I made no adjustments to the pilot screw either, left it at stock. I may actually try a 155 and see how that runs. I havent actually rode the quad without the quiet core removed so I am not sure if performance will change but I did start it up and rev it up without it in and it was Loud. So in a nutshell, the Lexx slipon is a high quality product for that $200 price.
