I installed Arrow slip-ons on my 2007 S2R 800 because I wanted an exhaust with a deeper tone, but I am a bit disappointed after installing them since they were so pricey and the sound barely changed (it's just slightly deeper after removing the DB Killers). I was wondering if removing the catalytic converter would affect the sound of my Arrow slip-ons a lot? I've been looking into the Spark collectors and my question is if it is worth it to remove the CAT for a better sound. Also, would a ECU remapping / Power Commander be immediately necessary? I read some posts of people saying their bikes ran acceptably for a while without the tuning. Finally, since my S2R 800 is the 2007 model, it has an oxygen sensor... does anyone know if the Spark collectors include a sensor plug? or would the ONLY option be to get it tuned and remove the sensor? https://www.desmo-racing.com/en/decat-system-exhaust-spark-monster-s2r-800-07-xml-447_487-1836.html
Yes they will. I’ve done similar with my s4rs: spark pipes with mivv cans. And there are probe points (unhelpfully they don’t supply plugs!) and you can normally get ecu mapped. @chrisw can do most for a very small charge
Thanks for the photo and the help! Do you think it's fine to run with the stock mapping for a while after installing the pipes?
I am. Smells a bit rich bottom end. Soon as I can, mate is going to map it using DO flash or, if doesn’t work, I’ll be sending to Chris. Just have to ignore the yellow engine light.
