I have a yamaha super jet 650 1993. It has a riva ride plate and intake and just bought a jetlyne series 16degree 14/17 impeller . What else can I do to get the most bottom end as posible. and is that the right impeller. I was also wondering agout how much a pipe will add and what kind

to get more bottom end snap I would get aftermarket heads next.180psi or 35cc domes so you can stay with pump gas.
A bpipe or Factory pipe will give you alot more pull off bottom mid and top.You can expect to get 10-15 hp out of the pipe..The bpipe is the most common.

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