[Steve in Sunny Fl]

Thoughts? I have one on my 2015 V1K and just finishing tuning to it. It really messed up the tune for the stock header. I had to add timing and pull a HUGE amount of fuel off low rpms to get the torque back. Wondering if anyone else has installed this header and what their observations are. Steve

 

[Steve in Sunny Fl]

nobody? how about the cat delete pipe from the UK... should be about the same.

 

[Fastoman]

nobody? how about the cat delete pipe from the UK... should be about the same.

Not too sure on 1VK , but my 650 runs without the Cat with Akrapovic Exhaust- slip on with extend pipes and NO issues at all.