Can you get a black spring installed on an '03 Praire 360?
If so, how much?
Can I do it myself?

 

Don't know, but I thought I read somewhere that the Yellow that comes out of the 650 is the next step up for the 360. If someone can verify that, you're welcome to mine. '

Maybe give EPI a call - http://www.erlandsonperformance.com

 

I installed the Black Spring on my 360, & it seems to work pretty good. There seems to be allot of debate going on as to which spring works best on the 360. I'm hearing the Red spring is the ticket for the 360, but I also read in Master Nyroc's web page that the yellow stock 650 spring is what to use on the 360. All I know is that after I installed mine I notice more response on the throttle & no belt squecking at take off (but it still squacks at idle) As far as instulation, it's not all that hard, just make the spring compressor that master Nyroc has directed on his web page & make sure you have a good circlip tool. I would say it's about at technical as changing front brake pads on a car. (maybe a little harder) I think the spring cost $25