Needed SLP High Alt Needles

i didnt know that SLP had custom high altitude needles made or available. I suspect you are simply looking for a leaner needle and lowering the current needle by raising the e clip didnt provide desired results. I assume you are clear on how to read the complicated codes necessary to correctly tune with other needles.

if you need to understand the codes go to Aaens clutch tuning handbook. I would start also start at your local polaris or cat dealer or Aaen for the needle you're looking for.