performance

I own an unrestricted 2014 cbr650f in the United States. The previous owner said he cut the stock headers at the collector . The bike has one headers and a welded on two brothers muffler on the end. What mods can I do to get more hp/performance out of the bike. And is getting a full exhaust...

Hello, I have a 2021 CB650R ABS, and I am looking at upgrade paths down the road. I have already purchased an exhaust, I went with Akro, and am looking for an air intake for the future. Are there any options for aftermarket air intake systems? I have not been able to find any through the quick...

I see that the way to improve performance is with either a reflash or a PCV, disable the PAIR, full exhaust, and improve air intake with a high flow air filter and snorkel work depending on your location. Why do I not find any cams, valve springs, head/valve work, etc like in decades past?

Super excited!!!!! Taking delivery of my CS racing exhaust system today. plan to fit this over the weekend along with a K&N air filter and radiator cover. Also installing a gear indicator, just need to decide where to mount it. Lastly i will be taking out some of the throttle free play...

Hi all, I have a 2014 CBR650F with 16,xxx km on it. Only engine mod is a CS Racing exhaust (also have a gear indicator). Occasionally the engine has started cutting out at high revs, usually in 1st or 2nd gear around 9-10k, often when I'm merging onto the highway or passing someone. It's hard...

Hi, have just brought my 2016 CB650. Been great with one exception..... Twice I've been in the rain and the bike has developed a misfire. As soon as it dries out normal services are resumed. Between 4 & 5000 rpm it's hesitates and sounds rough then clears and appears to run okay. Not sure if...

So problem I'm having is at wide open throttle the motorcycle runs like crap above 7000 RPM. I spoke with a mechanic and he suspected a fuel pressure issue so I've tried a few things I'll explain below but I believe it's a fuel map or something else. The behavior is very much ON/OFF dependent on...

What's better a power commander v or getting a ecu reflash for a lams bike cbr650f

Hey, I have a 2018 cbr650f with 200 miles on it and I was riding down the highway yesterday and anything above 70mph in 5th and 6th gear I had vibrations in the seat and handlebars. Its never done it before. Could I get some insight?