These three models are Stage6’s competition pipes. They are not road legal. The Pro works particularly well with sport cylinders, the R1200 is an easy to set up pipe with an extremely wide powerband and the R1400 gives the engine just that extra bit of power and revs the racing scene has been looking for. Both the R1200 and the R1400 are gas-welded by hand, the quality is as good as the performance potential.