I am waiting for delivery of a Zard exhaust and will be sorting the fuel mapping out once I have fitted it. Bit of a wait from Zard so meanwhile, I removed both the O2 sensers into the pipes and fitted caps and blanks to tidy up end connectors etc. The reason I have done this is from previous threads I understood it might help with rough running/throttle response at low speeds. Only managed a short ride our today during which I purposely went through some busy stop/start traffic. Is there any difference? You bet your life there is! The kit cost me £29 plus some postage on ebay; came from Greece, claiming to use OME parts. Looks all legit to me. I get there might now be some unburnt fuel going out the back and possibly a reduction in fuel economy but at the price of getting full control at low speeds without constantly going for the clutch... no brainer! Just gone to number 2 on best mod to my bike( suspension upgrade hard to beat)
If anyone has any cautionary advise on what I done please let us know before I put any more miles on. It is a simply procedure to retro fit.