I used gross jets before and had success with them. I'm not really sure of the advantages though. I believe they are let fussy (meaing they're less prone to failing when dirt runs though them) compared to the needle and seat set-up and they allow higher flow rates. If your having problems with your needle and seats I would suggest using them, but otherwise I don't think they will increase the performance at all.
central snowmobile is about 25 minutes from my house door to door.as to the grose jets ive never heard of them. when i read the title of the post i was like WTF and then when you were asking about a gross jet i was thinking like ummm i dunno how to say this like a fart machine.... it only lets thing out and not anything in.... dont mind me im wierd What a mod to have lol
My wife said its Her or the sleds........ I'm sure gonna miss her
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