I had a White Brothers E-Series pipe on my Quad. The mounts cracked then broke when I hit a jump at the track today.
I have to get a new pipe im looking at the Big Gun Evo x or LRD Pro 4 they are about the same price whitch would be the better pipe.

 

I would have to guess the LRD if you are going for a full system. If not then they are probably pretty close. The LRD is supposedly the biggest gain producer for the 450R.

 

it would only cost a couple bucks to get the WB's bracked welded up

 

The packing is blew out of the white brothers and where the pipe goes into the muffler is broke apart. I just need a whole new pipe

 

The lrd pipe is the only way to go, get the power up kit too to peel your eyes back.

Tuck and roll!!!