Guide to Installing the Ultimate Delkevic Exhaust on Your CBR 600 F4i for MAXIMUM Power!

[@seanylewl]

Does that mystery tab have a rubber piece on it? If so, it looks to be a stop for a center stand, you could probably just chop it off. I didn't even know you could fit a center stand to an f4i but a bit of googling shows they do exist.

[@WidgeTheWiz]

Yeah I think on the European models they came with a center stand. Would have been nice for easy maintenance but I guess that's why we have stands. I'll cut it off if it starts to be an issue.

[@seanylewl]

@@WidgeTheWiz I figured that if it was race bike you wouldn't want any extra weight hanging off it, although yes they are very handy to have!

[@WidgeTheWiz]

@@seanylewl Yeah I agree. Every ounce counts haha

[@mrright3448]

The last one is great but the first exhaust is a killer

[@andreimayer98]

Did you measure the weight of the headers ? Can you tell what the difference is between them ?

[@Pro355Street]

i came for the first f4i..and stayed for the second f4i!!

[@WidgeTheWiz]

I have a lot of work to do on this bike in the coming months. Planning to do an engine tear down and replace the parts that failed.

[@OmarOmar-uy3gi]

⚘⚘⚘

[@CDKZFZ]

Your engine is letting oil into the combustion chamber via piston rings or valve seals. Just a note.

[@WidgeTheWiz]

Yeah I lost a head gasket too at the last track day :(

[@CDKZFZ]

Ahhh sorry to hear, I've had motors pop on track days i feel ya

[@clayton_1000rr]

Did you notice any difference with the throttle response ?

[@WidgeTheWiz]

Honestly no. I have not been able to really get into it because the tires are basically bald. Also it's missing an O2 sensor so I can't say for sure anyway till I get that fixed. The bike as a whole is really a mystery that I am unraveling as I work on it.

[@clayton_1000rr]

@@WidgeTheWiz mine felt a lot snappier Especially at the initial. I did the full system block off plates and k and n filter. Ran it like that for awhile, then I actually switched back to stock manifold and currently running it as a slip on. It’s still plenty Loud enough for me, I may put it back. But it seems a bit smoother on the throttle this way.

[@WidgeTheWiz]

@@clayton_1000rr good to know. I'm planning to get the bike dyno tuned. Hoping any issues that may come up can be fixed then.

[@clayton_1000rr]

@@WidgeTheWiz I don’t think you can tbh I know the ecu can’t be flashed 🤷🏼‍♂️ not sure what they would be able to do. Let me know what you find out.

[@WidgeTheWiz]

I have a power commander V. My tuner says he can use that.

[@norubber4074]

Gotta link for the full deal?

[@WidgeTheWiz]

Oof forgot to add that to the description. I'll post it now. But just for you here you go: delkevic.com/full-system-to-fit-cbr600-f4i-2001-2006-with-mini-8-carbon-fiber-round-muffler-and-stainless-steel-4-1-headers/

[@norubber4074]

@@WidgeTheWiz she sounds amazing!

[@WidgeTheWiz]

@@norubber4074 Yes I would say out of all the exhausts that I have heard on this bike including my straight pipe. This Delkevic sounds the best to me.

[@norubber4074]

@@WidgeTheWiz any hp gains with the full system you think?

[@WidgeTheWiz]

Minimal as of right now. Going to get it dyno tuned with a powecomander in the future to get the maximum benefit 👍