Yes but sometimes you pay for more then you'll ever need.

 

i went threw three cdi first a stock one right when you start having fun the rev limiter kicked on the second was a procom ran like garbage after i installed it the third and the one i have know is the ron woods if you plan on doing any after market parts thats the one i suggest

 

Right about 8500 PRM

 

The Vortex also has a much smoother idle than the stock unit.

If money is an issue I would pick up a used RWR CDI before I ever put one of those Procomm units on my DS.