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im thinking of getting a yosh slip-on or full exhaust system...haven't decided which one yet. My question is, would i be able to just slap on the exhaust and go or would i have to get a power commander or remap my stock ecu?
 

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you dont HAVE to remap(pcIII or teka) with full system.. remapping WILL give better performance though.
 

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If you don´t remap it (with a f/s) you´ll loose smoothness and that feeling of "all-the-way-torque", like happened with me.
I think you´ll probably loose some real perfomance (at least in acceleration). You´ll get backfire and popping too (popping will become a pain in the a$$), but this could be solved by disabling PAIR.

So, if you´re just into the "sound" a slip-on will be better, other way be prepared to spend a few more $$$.




Note: i´ve got a micron f/s, K&N and now a PCIII USB.
 

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my popping decel is the best thing about my slipon holeshot. well that and the sound of pure acceleration that puts a smile on my face
 

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My bike doesnothing wrong at all, seat-of-the pants, with an M4 full system and no PC. I have not run it on the EGA, but I would not assume you definitely need the box.
 

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basically if you dont NEED it..but if you want your motor to run optimally for power and run at the correct fuel mixture then yes...you do want it. I have only a yosh rs-3 slip on and k&n filter and spending $80 to get my pcIII dyno tuned make over 75 rwhp and I know it is running the way it should
 
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ok, it seems no one gets it, but YOU DON'T NEED A PCIII for a remap of the fuel!!! call around and see who's got a YOSHI box - it plugs right into the wireharness and presto - new map on the stock ECU! now you got money to buy those lowers! ;)
 

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Yeah...
The only trouble seems to be that Yoshi box doesn´t work that well with our 16 bit ECU.
 

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use teka tool then... teka map doesnt erase if battery is unplugged
 
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I was considering taking it off completely, but for fear of water entering the airbox...i did the next best thing which was to use the snorkel off a Sv1000 which is a little more than twice the size of the 650 snorkel.
 

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unless you plan on riding thru the rain..dont worry about water in the airbox. Just be careful when u wash it and it will be just fine
 
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