I have the fmf dynojet kit with the 300cc and muzzy and double snork. the dealer put it on a exhaust machine and it was on with the 132 . The dynojet kit is designed for the klx 300 . So the jets are made and tested for that bike. And in my case it was right on . If you don't have a 300 I would jet down a bit. I was using the 124

 

I also plan on using the 132 Dynojet main with my 331cc jug, so I hope it's not too lean.