Greetings from the Great White North (a.k.a. Canada)
As my bike sits hibernating, I was thinking of pulling the stock exhaust header off (seeing as how I can't seem to find a full system for a reasonable price anywhere) and grinding all the inside welds down so as to improve airflow. I did a partial job at the rear collector (welds only, I did not mess with the "obstacle" as per the recommendations from Sir Roger) but didn't want to remove the system to go any further. With the bike sitting idle, I thought it might be a good time to finish the job (all welds) and then finish off by getting it ceramic coated. Has anyone tried this? Is it worth doing? It seems to me that if it's worth working over the ports to improve flow, it should also be worth doing it to the exhaust (since any weld whose surface rises into the exhaust tract effectively creates a restriction and turbulence, thereby reducing flow and choking the engine). Obviously I am not expecting massive gains but a free hp or two would be nice Your thoughts?
I agree with Timbo, a lot of hard work. I wonder though if it is possible to get to all of the welds to do that Even if you can I doubt you'll notice very little difference, if any, but I understand the principle behind the plan.
Good luck if you do go ahead and do it, keep us posted
Wouldn't it be so much easier to fit new downpipes?
Several folks make them for the Storm, in stainless from somewhere or swish gas flowed systems from Akrapovic.
Treating the original pipes is obviously cheaper, but once you factor in ceramics and stuff, it wont be much of a saving and probably wont give as good results as a proper designed for it job.
Harris do a full on mutts nutss ceramic exhaust system that will fit. For £1100 (CA$2178)
Thanks Mike...nice piece there SEnd me the contact info if you could (m_p_garneau@hotmail.com). I sent an e-mail to J.A.C. a few days back to enquire into their 2-1 system but have yet to hear back from them.