fastfredyb Posted December 4, 2014 Share Posted December 4, 2014 I have never added an exhaust system before. I am thinking of adding the Yoshimura exhaust but I am trying to crunch all my numbers. My questions is do I need to add anything else to the bike in addition to the exhaust. Link to comment Share on other sites More sharing options...
Premium Member GAZ Posted December 4, 2014 Premium Member Share Posted December 4, 2014 A fuel controller is not required for a Yoshi exhaust, but will only help the performance. Most exhausts out now do not require the additional fuel controller but some of the full exhaust systems with the DB killer (baffle) removed will require it due to the increased A/F ratio. Link to comment Share on other sites More sharing options...
Premium Member hobbs Posted December 4, 2014 Premium Member Share Posted December 4, 2014 Like @GAZ said, not necessary according to Yoshimura. If you decide to add a fuel controller at a later date, you'll be pleasantly surprised however. Everything went braap. Link to comment Share on other sites More sharing options...
fastfredyb Posted December 4, 2014 Author Share Posted December 4, 2014 Thank you gentlemen, Link to comment Share on other sites More sharing options...
carcrusher1978 Posted December 5, 2014 Share Posted December 5, 2014 Sup Fred...which yoshi exhaust are you considering buying, with or without catalytic converter? if with out...were will you be buying it from..CA is a pain when it comes to getting these exhausts thanks, carcrusher1978 Link to comment Share on other sites More sharing options...
fastfredyb Posted December 5, 2014 Author Share Posted December 5, 2014 Hey Rich. I'm thinking about this one here but I might wait a few more months. I think it sounds great, which is my main priority for freeway riding. http://www.revzilla.com/motorcycle/yoshimura-r-77-exhaust-system-yamaha-fz-07-2015 Link to comment Share on other sites More sharing options...
onuro Posted December 6, 2014 Share Posted December 6, 2014 Hey guys, to clear things up: as long as the exhaust you bought has a connection to the lambda (oxygen) sensor, your bike will be just fine. The catalytic convertor is only the thing to make it street legal to pass the inspection. Nothing related to the health of your bike. And for me, I've been hunting for an Akrapovic carbon +6hp-5kilos! (not the titanium) Link to comment Share on other sites More sharing options...
Premium Member GAZ Posted December 6, 2014 Premium Member Share Posted December 6, 2014 Most states do not require inspection here in the USA for motorcycles. You can basically do whatever you like to your exhaust. I'm fairly confident also that even states that require inspection do no break down your exhaust and check for a catalytic converter or run your bike for 'gross polluter' status. There is no point in having a catalytic converter in place besides avoiding getting a fuel controller. Link to comment Share on other sites More sharing options...
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