rotax light weight or riva supercharge impeller?

[Green Hulk]

Richard aka "way2fast"

[Krazy-K]

who has the best price on the vortech wheel?

[Green Hulk]

The Vortech impeller makes more boost.

The Rotax Racing impeller is a duplicate of the stock impeller only lighter.

If you are going to spend the money you want more boost!

[Krazy-K]

by that discription the riva is better for performance increase.

[Jrsrxp]

The RR SC impeller is lighter (3 oz) and is a coppy of the stocker. The Vortex SC impeller is one oz lighter, more blades (I am abig kid I counted them also) and has a much diffrent blade designe did I spell that correct It al

[Krazy-K]

witch on to buy?
what advantages and disadvantages?
any one used marks light weight set up?