2019 Kawasaki Z900 DE-CAT. Worth it..?

[@joshtonelli3319]

As a z900 owner this is interesting to see. I love how you show the AFR on your dyno runs. I still have my cat in mine. Great job! I've been loving your work and videos!

[@provenpowercycles]

Thank you 🙏 we really appreciate the love! 🤙

[@8OneOfTheNobodies8]

I got my z900 in 2018 from brand new .. it came with a full akra system, I got it custom tuned and the guy explained and showed me that the bike was getting way to much fuel some spots so after a couple of hours I left with a bike that had better fuel eco AND ran better, a small gain in HP but I was after a bike that was balanced.. a few years later local laws made it impossible to run a full system since I risk crazy fines so I made the call to get the original headers on the bike with the akra slip on, did a new custom map/tune and the bike still runs great.. not a major diffrence in sound or feel of the bike.

[@provenpowercycles]

Awesome man! 👌

[@brianw3499]

I cannot say enough good things about these guys,they rock. Super detail oriented, amazing work. If you are in the Tampa area I highly recommend checking them out !!!! I've had my bike in there twice and they never disappoint.

[@provenpowercycles]

Haha he'll yeah bro! You see the video we made on your bike yet???

[@sfzx54]

Very interesting result here seeing how rich the thing was running even after the cat removal! Just the opposite of what you would have expected with opening up the system by a tremendous amount.

[@provenpowercycles]

@@sfzx54 definitely surprised us with the result of the afr! Was not expecting it at first.

[@sfzx54]

@@provenpowercycles have you had any experience with the 20-24 ninja 1000SX, is it similar? You would think kawasaki would do similar things from one bike to another but who knows anymore these days. You would think MPG would even improve here! If you can keep from twisting the fun handle.

[@MotoChris_]

took your advice just a few beers and couple of hours wasn’t too bad just had to be patient I actually used a impact driver and spade bit to clear out the centers and chisel the sides out and it all came out in one piece for both

[@provenpowercycles]

@MotoChris_ nice man! It's really not a hard job. Just pain staking haha

[@AfiqDahari]

just run a dyno on my bike previously decat and breadbox delete with DNA air filter installed, I got the same result like you around 119. The air filter does not make any different.

[@FrankBonessa]

Have a '22 Z900 with just a slip on. Been riding it for 2 years .15k wonderful miles. Have to say all in all I'm in love with the sound and performance .I've taken off in 5th gear for kicks and it has lots of grunt everywhere. In stop and go traffic it does run a little warmer than I like, but still runs excellent. ECU flash could let the fan come on earlier I guess. Hard to believe this smooth 4 banger can breathe thru that restrictive cat. Z's with a full system are just too loud for my taste. So for now it's staying as is for my 5 year warranty. Wish you were closer when the time comes. Idaho's a long way.

[@provenpowercycles]

We have done some even stock with just a bench flash, and they respond pretty well even doing that. Idaho is definitely a bit of drive 😅

[@FrankBonessa]

@@provenpowercycles Would be a good ride tho. The longest run on the Z has been 2500 miles. I have a Hepco & Becker Sportrack with 2 gal. Rotopax with 45 liter tailbag on top. I might make it.

[@provenpowercycles]

@@FrankBonessa haha only 1 way to find out! 😄

[@Zed900rsCafe]

I picked my 2020 z900rs cafe used with 15k a few months ago, overall I love the bike, but ive had an issue with it struggling through the rpm sometimes doesn't matter it happens at random times. I've done a breadbox delete and that didn't change anything. I'm hoped a flash tune will fix it. I've had 2 shops check fuel, compression and check it over and no help, anyway........Love the videos, keep em coming

[@provenpowercycles]

@Zed900rsCafe awesome man! Yeah sounds like some sort of gremlin in it, if they don't see anything in tune. We've seen a lot of shops test fuel psi only at prime and not under load.

[@clubstyleridahd4695]

I just replaced my headers for the delkevic headers. The diameter is smaller on the delkevic than the stock headers.

[@natvega1]

Wow, saw this on a zx6r, the guy put a slip on with no tune and went to the track and the rich condition melted his cat until it clogged his exhaust, dealer couldn't figure out the problem for loss of power, later at the dyno the ecu flash for the slip on revealed a clogged cat, too much fuel raised exhaust temps and melted that honeycomb material.🤣...forgot to mention that the baffle on the slip on also raised back pressure psi past normal 1 psi. the baffle was also removed leaving the bike very loud. 2024 kawasaki zx6r.

[@provenpowercycles]

@natvega1 exactly! We have seen it on a few kawasaki and suzuki platforms where the cat melts, and even in some rare cases, it was too much back pressure and blew the motor. 👍

[@RobertHiggins-gv5jc]

Everything ad's up however The bad for these gain's will void warranty...,... If your running for time on a track then it will make a difference however if you are a better rider you could make that up.... I personally will not void my warranty unless I'm going in All the way...just wanted to mention this to New B's..... great video for someone that's just getting started .. and when you do something like this it's gonna give you a great feeling and then your getting ready to play with the Big boy's....do you guys do any porting and if so can you make a video on this bike there is nothing out on KZbin.... thanks for your time and helping others get the bug so go Big or go home........

[@provenpowercycles]

@RobertHiggins-gv5jc I used to do a ton of porting and polishing on different machines. We have a few people interested in getting it done. Perhaps, we will do a video on it all 🙌

[@RobertHiggins-gv5jc]

@@provenpowercycles that would be nice having a video of some porting being done..that would open so much up.. looking forward to seeing it I'll keep an eye open..thanks...

[@eddwiggins4383]

The most helpful part would've been showing us how to remove the cat.

[@djmanchini]

LOL, yeah!!! same thoughts

[@provenpowercycles]

@eddwiggins4383 you drill, drill some more, beat on it, drill some more, cuss a bunch, then pull it out with some long needle nose. There are different ways to do it aside from that but that's how we are doing it now. You can also cut it open and cut the guts out and then weld it back together.

[@TheRealJohnMadden]

Either take a hole saw meant for metal that’s the same diameter as the inside of the pipe, and you can just pull the guts out as one unit. Also, you could just buy new headers that would obviously be catless, but that’ll cost about $700-$800.

[@Johnnyreengo]

@@TheRealJohnMaddenand correct me if im wrong but i think the catless headers are shorter than factory headers with cats

[@jasonmekush5280]

Great shop even better work. at 100 / hour drilling prob not worth the gains.

[@Texasphotoguy]

I think for the average rider removing the cat is not necessary. 125HP stock is plenty of power.

[@ChapoRR]

Watch Moore mafias video in this bike

[@xtz9094]

I have removed the bread box replaced with mid pipe link and mivv slipon. the catalyst remains. Original headers. Do I need to do a mapping? The z900 runs really smoothly and nicely Z900 2018

[@provenpowercycles]

Not really. A regular ecu flash will still be beneficial though. Lower fans, remove emissions sensors, etc...

[@djmanchini]

@@provenpowercycles almost the same question, but in opposite order. I've had a ECU flash done on my Z900 18" with full Aliexpress system. later due local laws and possible fines, had to revert to OEM headers, breadbox delete, catalyst intact + link pipe and a slipon. Should i now re-flash the ecu? thanks for taking time to reply

[@roywalls5595]

I am putting in three Akrapovic Catalytic because stop popping noise on my three wheel trike and use less fuel run it!!

[@mzslave]

Hi. So ive watched both videos, one with sc project from ebay. And is it realy that much impact on gains has those headers? Ihave excpected to see here the same 126hp with cat removed, since you cleared the path...Please explain. Thank you

[@zacwaynenavaja8030]

How did u get the cat out?

[@turbosupra2jzdragracingtob249]

Surprised you allow the O2 sensor to be installed and add fuel. Can’t you just delete the sensor?

[@provenpowercycles]

@turbosupra2jzdragracingtob249 yes we delete the oem sensor through ecu. Those are programmed for emission purposes and will fight the tune unless we disable them 👍👍

[@savastanivukovic4984]

MT 09 2021 owner here, i have a question... Could i get a slip on and de cat all the way to the headers, in other words, make a custom exhaust on stock headers? If can do i need a tune, or leave as be... Just wanna better sound and don't wanna waste 1500+ on full system

[@provenpowercycles]

@savastanivukovic4984 honestly, to find someone who will go through the pain of fabing up a custom section plus slip on can be pricey. There is a knock off sc project exhaust on ebay for like $400 you can buy that will yield similar results. We have that video on our channel if you go thru it 🤟

[@Compactor_08]

Did you get a check engine with the decat? I want to put a header on mine, but I’m worried about the check engine

[@hakanilbas2220]

Nope, you won't, have been running my 2019 for a couple of months fine

[@xtz9094]

⁠@@hakanilbas2220 no tune? I have only done breadbox delete on my z900 2018. Do i need tune?

[@provenpowercycles]

@Compactor_08 there won't be a check engine light with the decat or full exhaust. But it will mess with the AFR a bit leaving it in and hooked up. You can always mail us the ecu for a quick flash that can help get the tune closer if you would like 👍

[@lumpvision5746]

Is doing the decat basically the same as having a full exhaust system, or will a full exhaust get you more power? If so, on average, how much more power, if any?

[@provenpowercycles]

Having a decat system is similar but not the same as having a full, aftermarket exhaust system. Depending on what type of aftermarket exhaust system, they should make more power than a gutted cat with a slip on. The hp numbers all vary depending on the system.

[@lumpvision5746]

@@provenpowercycles gotcha. Thanks for the reply.

[@muhammadazrulhaziq1549]

is it 51mm or 60mm

[@17ANONYMOUS12]

I want to do cat delete in my ktm rc390 how much power can i gain after doing it ?

[@Pikehapa]

What does it cost to tune the z900?

[@olivierdubois2273]

Might be a stupid question, but does it make the bike sound a lil louder? Because l tried full exhaust, but it’s way too loud for where l live… I’m trying to find a way to make it a lil louder, without a full exhaust

[@provenpowercycles]

The muffler is a biggie. If it's a short muffler with little to no packing then it will be a screamer. The more packing and the bigger the muffler, the quieter it will be

[@olivierdubois2273]

@@provenpowercycles ok good, l have a slip-on CRT Sc-Project on my z900

[@provenpowercycles]

@olivierdubois2273 yeah that's going to be pretty loud lol

[@raymondwinans978]

Will Doing a full exhaust and remap void your warranty?

[@Raz_bu]

Yes

[@provenpowercycles]

@raymondwinans978 typically, yes. But we offer a service where you can either come back in or send us the ecu to put back to stock if you are going in for warranty reasons.

[@muhammadazrulhaziq1549]

the link pipe is 51mm or 60mm ?

[@brummettt1]

Can I get contact info? Thx for the video!

[@provenpowercycles]

@@brummettt1 3127 Tyrone Blvd N Saint Petersburg, FL 33710 727-256-0001

[@brummettt1]

Thank you!

[@afiqdahari5815]

do we need to tune the bike after remove the catalytic???

[@provenpowercycles]

I usually recommend it across the board to people due to the majority of the bikes we tune, the AFR skews pretty badly either rich and or lean. Some bikes even have a crazy lean then rich then lean again mixture once you get the cat out of it. You just never know.

[@AfiqDahari]

​@@provenpowercycleshi there, just want to ask is there any different between fullsystem z9 header with stock header with decat and breadbox delete?

[@provenpowercycles]

@AfiqDahary yes. If you get a good full exhaust system, then it does add a couple extra hp depending on the manufacturer. 🤙

[@ragingelefants]

what frame sliders are those on the bike?

[@stephanegregoire8738]

13 min to get a result you can see at 8:25 = +9HP the rest is blabla

[@ChapoRR]

Still can get 8-10 more horses. And the AFR is 🤮

[@provenpowercycles]

@ChapoRR 😅😅😅 okay buddy. 👍

[@ChapoRR]

@@provenpowercycles what’s your problem ?

[@Jameson-ks4bj]

What's a cat? Meow?