Should you UNLOCK the Kawasaki ZX-4RR with an ECU flash? (Huge Gains)

[@jubei6802]

300 dollhairs for 20 horses? Nobrainer imo

[@noahknight4039]

Yeah for the money it’s a nice upgrade. People spend more than that on intakes and exhausts for a car and don’t get an extra 20hp most of the time.

[@djmohab2]

@@noahknight4039 Because the bike was neutered from the factory in the ECU thanks to CARB/Canada noise restrictions. It's not a mechanical issue with the engine.

[@aesoundforge]

I was on the fence about flashing. I did a remote tune with Moore Mafia and the bike is so much better. Definitely worth it. The bike stock has a big dead spot between 7and10K. Thats all smoothed out. I recorded and posted on KZbin few passes with the flash and Yoshimura slip on. The bike sounds so good! The bike has plenty of power on the highway. You really have to get used to using the power from 10k rpm through 15K rpm. That is where the engine wants to be.

[@jamesgeorgevellavella1961]

Awesome bro. I am years off touching my 40th bikes. To me at my age and being lazy warranty and peace of mind is King. Reason why I didn't buy the te300 and went with ktm was 30day warranty vs 6mths (Husqvarna dealership has always looked after me up until the te300. At almost $20k and a warranty worse than buying Chinese pit bikes was never going to sit well with me ($80k spent on ninjas this month alone and $46500 spent at dealership with the shit warranty. So you can imagine I am not happy with that and now I bought a bike from other dealers (first time since 21 I didn't buy from local dealer but they looked after letting me Park my 40th anniversary collection so I really can't complain or hold grudges)

[@nuddin99]

I don't always watch your car videos but I will always watch your ZX4RR videos to hear that engine 😄

[@IndyMotoRider]

Yup. With the price of new cars I'll keep my '06 Toyota until it dies. My bike is a '23 Hayabusa though.

[@mustang32758]

Yes, get the flash. I got the vcyclenut flash and its well worth the cost. Also have the Graves slip on and it sounds really good.

[@jbcXR]

I bought a ZX4rr 2 months ago and got full power here in the UK and it goes like holy crap, too fast for the roads over here and can keep up with a lot of other bikes on the Twisties and of course a lot of fun, so have it flashed and enjoy buddy .....👍😀🇬🇧

[@jbcXR]

​@@darekm6859I agree with you mate .....😂

[@hutch814]

Wouldn't even be a question whether or not to add 35%HP to the tire for the $300. Take my money.

[@mrwick4875]

I had my 2023 zx6r flash by 2WDW and wow the power is amazing. Couldn’t agree more to get your bike tuned if the funds are available and get full exhaust too bike sounds awesome

[@AERoVALKYRiE]

If I had a zx4r yes I’ll get an ecu flash to match the specs from other markets. I’m not flashing any other bikes.

[@jamespreacherbeck4306]

I flashed ECU, also went with Vcyclenut. Agree with you on his customer service, and at the time, got the Graves slip-on cheaper through him than anywhere else. I tracked mine bone stock and then again about 300 miles after the flash. Night and day differences. Obviously, same for street, just more noticeable on the track. Have fun. Stay safe.

[@geoffsmoland]

such good content. I have a Suzuki GSX-S1000GT and V-strom 800 right now and really wanting to go to one bike and this might be it. My favorite sports car of all time is the Miata (had one of every generation, a FM turbo, and 3 spec Miatas) so thinking this might be the "Miata" of motorcycles? Fun to drive/ride a slow vehicle fast, especially if it handles and behaves playfully and feels well sorted.

[@DailyMotor]

SO COOL to get to redline three gears and still be within reasonable highway speeds. But doing that quicker will be even cooler 😄

[@dougmaverick3287]

Stock windscreen??

[@georgemcpherson3706]

I have 3 bikes they are all flashed , the ZX6R is stupid fast and unlike the ZX4RR can't really use alot of it without the idea of jail time in the back of my head !

[@KirkKreifels]

Exactly! be safe mate.

[@AnnaWilliams-l1y]

Your videos are always a source of positivity and good mood. Thank you for your fun and creative work!‍♂️🐝🧿

[@farmoboy83]

This is similar tro the cbr250rr from the 90s. Engine always screaming but not too much speed or acceleration. For road use, 50hp is more than ok in alight bike solo riding.

[@tims9294]

Love the paint colors on the bike.

[@barrywiggins6232]

I have the 24 krt 4rr with graves slip on & it sounds amazing ecu flash is next!!

[@wowjason62606]

Regarding ear plugs get yourself some Axil Xcor Pro earbuds. They are pricy at $299.00 but they do go on sale $100 off pretty often. Foam ear bud to seal off the ear canal from wind and noise, Bluetooth so you can have your music or gps if you want and most importantly active sound mode at 3 levels to hear normally or even better than normal while having active noise cancellation above 85 decibels. TLDR: best ear bud for ANY loud hobby and replaced everything else I own. Allows you to have normal conversations and save your ears

[@davidlowe4093]

Have a great time in Japan! We want a full report.

[@Bristecom]

Hah, I'm planning to get that exact same bike tomorrow and am also going to Japan next week!

[@irocss85]

What is top speed in first gear and second gear? My 1280cc buell is about 60?? 6500rpm Rev limit. 😢 but it is a torque monster not a race bike. So it works out perfect for what it is. I do wish it sounded like that bike though....

[@alanaspurling6469]

I commute on mine, about 15-20 miles on both highways and city streets. I really don’t feel like it needs the extra 20 hp. I also have a 701 Vitpillen with 70+ hp at the rear wheel and 360lbs wet weight, so I have an idea of what it would be like with the +20hp. My main concern would be voiding not only the original warranty but also the additional 2years extended warranty. With the repots of issues with the engine I really don’t think it’s worth it to me at this time.

[@ManuelAlvarez-cw8om]

I just bought this about a week ago. Are there any places you recommend to flash? Preferably on the east coast because im in GA

[@KirkKreifels]

I think that does a flash. They're in Florida

[@1717jbs]

Looking forward to this.

[@waynewallace2061]

Kris, you've got kids, be careful out there man. I've been on the ground myself, too many distracted drivers.

[@mrwick4875]

You have a quick shifter up and auto blip down fyi I would speed the money to get all the power you need plus that 400rr would make awesome track bike

[@integratian530]

My motorcycle is my only transportation. I have a BMW r1100RT . When I need a truck I rent one. It just isn't economical due to gas price or need to get to a location in a short time (traffic) to be transporting via car. The car is the luxury item! Gas price and the cost of being stuck in traffic isn't worth it. I live in California. You talking about two wheeled transportation as a want and not a need is you projecting. If you say well cars are more practical. Look at everyone driving a car. They are usually one person in a big vehicle where they aren't carrying contractor supplies / tools or anything remotely big where they need a car. This car need thing is literally because we have a car culture in this country. When I go shopping everything I need to carry including people I fit on my bike and it works in all weather. When I need more than my bike I rent a uhaul truck or a van. Because then I am pulling a trailer plus using the truck. Cars are financially impractical due to high insurance, expensive maintenance, and bad fuel mileage.

[@andrewbundy3723]

You in Palm Beach County area?

[@Stephan77645]

yes tune it. it revs much faster :)

[@burtfong5251]

Damn, sounds good stock, do the flash!

[@knievel8727]

If you consider the price of the bike plus a full system exhaust and ECU flash to end up with a couple more hp than an MT-07 and way less torque than a MT-07, it’s simply not worth it. Plus it weighs like 15 lbs more than an MT-07. It sure sounds good though and will be more unique and maintain value better.

[@4DZC]

I dont think everyone buys a bike because it's "worth it". Imho it's about the experience each bike has or can have. I mean I have 2 liter bikes, a few 600cc bikes and my 2 4RRs and ALL of my bikes were tuned by 2wheeldynoworks and the most fun I have are my 4RRs. An MT-07 is a decent bike, but that 2 cylinder does not sound nearly as intoxicating as the 4RR..To each their own but if it puts a smile on your face, bro trust me, it IS worth it! 😉

[@justinborysenko3885]

Careful bro you need that license

[@Josue-xr1yg]

I have the same bike and am planning to get it flashed next riding season. I’m not sure if you’ve seen or heard of multiple of these bikes having oil leaks and other problems so I’m kinda skeptical on getting this thing flashed and then the dealer voiding the warranty because of it. I know you mentioned that it can be reflashed to stock but even then it’s still a risk. Also I’ve read on some forums that upgrading the clutch springs helps with some clutch slippage due to the flash. I enjoyed the video and will be interested to see your process with this bike!

[@antd2733]

How many mpg before and after tune

[@DMN3901]

Either way, probably low 20's. The bike would be too fun.

[@pheelers1831]

They don't have an EJK plug in for it?

[@byhsu6140]

For me, 55hp is enough, but then i would have bought the Ninja 500 instead. But if you got the zx4rr, i would flash the ECU for sure.

[@IndyMotoRider]

Yes.

[@lovingmylifeasIage6741]

Yeah. How often do you get up to around 10k? I can pass other cars by dropping down a couple of gears. Going highway speed is just 6th gear about 8k. It's also cheaper on gas I would think keeping it stock. I wish it had the 3rd generation quick shifter were you don't have be of the throttle to down shift. I've had mine for a year and still haven't had it flashed and really don't know if I will. I'm enjoying it great now. I've thought about getting it done this winter but I might talk my self out of it. Does anyone who have had it flash notice any difference in gas milage?

[@aesoundforge]

Mine is flashed. It uses more gas for sure. Down shift and get it in the power band and you fly by cars on the highway.

[@The280zkid]

You have to be off the throttle to downshift with the quick shifter? I didn’t know that. Not that it’s huge deal. I’m still getting this bike 💯

[@Abner055]

To each his own, but I would have gone with the ZX6R. This coming from a guy that owns a Z900 and a ZX10R. I think you are right that if you would have gotten a Z900 instead of the MT-09 you may still own it. The Z900 is a great bike and one I can’t see selling. The ZX10R is a monster. Getting it Dyno Tuned next week. It’s a 2025 KRT ABS Edition. Thinking of starting to create some KZbin content with both bikes.

[@KirkKreifels]

Do it! Yep I think I would've been happy on the Z900 instead of MT... Loving the baby Ninja ZX-4RR

[@LeoTheShortGuy]

Awesome

[@krzysztofdziekiewicz4006]

If you have one of these bikes you have to flu ECU, it's necessary!

[@theantiqueactionfigure]

California sucks but it's sport bike, nirvana. Angeles Creast Highway, Highway 74, Mount Palomar. Roads so fast and twisty we lose a hooligan almost every weekend!!!!😢

[@pjb4653]

Duh😂 👍

[@Adv-caveman]

If I wanted a fast bike I would have bought one. Not sure if I will flash mine. I would rather swap the ECM. I love this bike. And finding a stock zx4rr in 20yrs will be impossible. My DL1000 is derestricted through the gear gizmo. If I want to spin a tire at 70mph.....the 20 yr old adventure bike will do it. I would probably use TST. But so far I am happy with a completely stock bike. That said one dyno report said the air filter and slipon was substantial. Even though the graph is lean. Such an awesome bike. My Sunday bike!!!

[@jamesgeorgevellavella1961]

They will know its been reflashed. It leaves memory so don't think for a second they won't void your warranty. Ask your tuner and even he should tell you same as what I have said. Only way around it is to buy a spare ECU. I'm not touching my girls for 2 years (then warranty finishes and the bikes get uncorked finally)

[@Exotic_Flash]

Thats so slow lmao

[@jamesgeorgevellavella1961]

Financially we're comfortable but I don't like the worries of not having any warranty or insurance. My 2years of unlimited mileage Kawasaki warranty on ALL NINJA BIKES is reason why I don't touch my 40th anniversary ninjas (x3 500 zx4rr zx6r all 40th anniversary so money isn't the issue). After the 2years is up then I'll look into upgrading my girls. At my age (44 tomorrow) peace of mind is King and the main reason why I only buy brand new bikes/cars (plus used price is ridiculous and far too close to new minus peace of mind. I don't even check valves anymore (bikes get sent off to the dealership and 90% of the time i also get them to deliver the bikes. My ninja 500 40th 2100km and it's been in dealership twice for service and chain tension adjustment. Tomorrow it's also getting heated grips fitted by Kawasaki so my warranty can't be voided if something goes wrong

[@sivanm2130]

No, buy a 600

[@Myrussell67]

Too many reports of engine failures. No I would not flash because the engine can’t handle the extra power in the upper RPM. So my answer is no.

[@hokogan]

Some guys are throwing a rod at cruising speed with relatively low revs, so it’s not necessarily tune-related. The jury is still out if it’s a problem on the ‘24s.

[@Myrussell67]

@@hokogan I think I will wait to see what Honda comes out with. Should be a real good competition in the small cc sport bike category.

[@The280zkid]

@@Myrussell67the states are not getting that 400 inline 4 from Honda. I doubt that’s happening with the 650r inline 4 here.

[@Myrussell67]

@@The280zkid well shit!! That sucks.