103B breakout 

Stage 4 Pro race kit

V&H 2-1 Big Radius

 

nice result for bike

Best tuner in Adelaide. .could get another 5 0r so hp/tq with better 2-1 pipe but then I'm sacrificing looks tho I do wonder if the big rad 2-2 would've been close or better than the 2-1 got busted on the 2-2 so to quieten it down a bit I put the 2-1 on

good flat torque curve with that 2-1 V & H

Numbers seem a tad low for a stage 4 but like you said the pipe isn't the best out there by any means

Akso, I don't know (as I've had no experience with B motors) but does the balancing system rob a bit of performance ?

Pipe holding it back a bit for sure but the big rad 2-2 would be a step back even further in any case

What pipe makes power on this setup

IMO a good 2-1 like D&D or supertrapp, etc or if you like 2-2 go stock headers with tapered turbos or similar slip ons.

Yep