1996 kawasaki sts 750. Please advise about possible upgrades to long exhaust pipe under electrical box? I have a seloc repair manual that doesn't have procedures or schematics of the exhaust system. Whe I run the ski water pours out underneath the bottom of the exhaust pipe directly above the drive shaft bearing. I have started to disasemble the exhaust pipes now wondering if the water box has to be taken out as well. Is there a aftermarket heat exchanger that may increase horsepower? can this pipe be welded if its cracked? Does anyone have any info that they can share with me.