Super Jet B pipe SN to rn

[jeremy chambon]

What's the difference in the b pipe for the SN and the rn that makes a $50 difference. I bought my pipe new a few years back when I had a SN and now it's a round nose. Is it the instructions they give you and more cooling line?

 

[augustaf]

The r/n kit includes the elbow from chamber to waterbox and an extra jet (dual carbs) www.ebay.com/itm/250427126093?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

 

[jeremy chambon]

Okay thanks for the info