Upgrade-free flow exhaust

[DR BLAKE]

Does anyone know which riva racing parts would fit a scarab 215 ho impulse so I could achieve free flow exhaust?? Saw a video on YouTube of a guy who had done this mod but didn’t give specifics!!

 

[ScarabMike]

You can make your own free flow with the right size stainless pipes and connectors. Just make sure you start the piping after the water box. Or you can custom fit a riva one as well.

 

[DR BLAKE]

You can make your own free flow with the right size stainless pipes and connectors. Just make sure you start the piping after the water box. Or you can custom fit a riva one as well.

Thanks. When I posted my question I wasn't at lakehouse where boat is. Now the I've looked at the boat all I need is a L shaped pipe that riva sells. I'll need two and they're about 100/pipe. Planning on using existing worm clamps once water boxes are removed. HOW MUCH LOUDER IS THIS GOING TO MAKE BOAT? OBNOXIOUS??

 

[DR BLAKE]

So after discussion with riva rep it’s the resonator, NOT the water box that’s deleted. Riva website show part # RS 16080 for $89.99 that appears to fit exactly like the piping of resonator. Since I need two I’m thinking to take resonator to local muffler dude and let him fabricate them for hopefully a lot less than $180. MAKE SENSE???