5-6000rpm bogging since new header??

Hi all,

i have recently replace the headers on my 1999 vfr as the original suffered heavily with header rott (kept the original silencer and installed delkevic headers). Ever since I replaced the exhaust it bogs at around 5-6000rpm under hard acceleration. Didn’t notice this before ‍♂️ . It accelerates fine up to then and fine after.

Was just wondering what could be the cause of this?

Any help would be much appreciated.

Many thanks

Clinton

 

Did you add a power commander or some tune? I'm unfamiliar with the header you speak of as I'm new to the vfr but I assume you eliminated the catalyst? Doing so generally requires you to use an O2 cheater.

While I'm sorry I dont have your answer hopefully with some more information others can narrow down the issue and get you fixed up.