I have an 06 Busa LE with K&N Filter and 16/42 sprockets. Stock exhaust. Bike was running fine, no issues what so ever. Last month I purchased Two Brothers VALE M-2s dual slip ons for it and PCV then installed them. I used the map that was 4-2 Two Brothers Exhaust with Stock/Aftermarket airfilter off Dynojets website. So with K&N and Two Brothers M-2 Slip ons and PCV if I was just cruising around 40 mph at roughly 4000 RPM the bike would feel like it was stumbling or falling and picking itself back up. I was racing a friend from 60 around 6k RPM and as soon as we took off my bike like fell on its face before taking off, once it did and anytime I punch it around 6k and go rev limit it will cut out or buck maybe 2-3 times. Anytime I full throttle from around 6k rpm it will do this. If I go slow into it and eventually reach rev then it won't cut out/buck. At first I thought the problem was my kickstand not being able to fully press the kickstand switch due to where the midpipes were placed but that wasn't the problem. I can't think of a fuel pump/filter or an injector being clogged or even gas I bought could cause this issue because the timing was so perfect. It didn't have any problems before the slip ons.. But afterwards it did. And I can't throw the stock pipes back to see because I already got rid of them. Honestly my only thought is AFR and that its running too lean not getting enough fuel due to the amount of airflow the exhaust is letting out unlike the stock pipes which I would assume have more back pressure? Idk, I'm still really new to the bike world just curious as to what others think! Should I just have it dynotuned?
Thanks for the help!
Thanks for the help!