Designed excusively with O'Niell Brothers Racing for Modified Engines
To start, here is a little history and the differences between the VRC and Pro-Pipe.
The VRC pipe is made for and works best with stock 2 bolt engines. The Pro-Pipe was designed after the VRC pipe specifically for modified engines.
The Pro-Pipe was developed when Jan-Erik at RC-Racing sent Victory several of the OBR full mod 4 bolt engines. It wasn't easy, but Victory came up with a good overall performing pipe. This is a high torque, high reving pipe.
From O'Neill Brothers testing, this pipe runs well on all modified 2 and 4 bolt engines. The Pro-Pipe is light weight and is a two piece pipe for easy install/removal. The VRC and Pro-Pipe are similar looking.
To identify the Pro-Pipe from the VRC look for the Victory RC stamp welded onto the pipe.