Is a Cat Delete Worth It?

31 mar 2021
1 628 336 visualizzazioni

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For centuries humans have had an unanswered question: ARE TEST PIPES WORTH IT? Well today we’ll teach you how to make your own test pipe and then take it to the Dyno to see exactly how much of a power bump we get it! Let’s do some race car stuff bby.
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  • When are you gonna add areo to the car

    SlavKing42SlavKing428 ore fa
  • You won't see a big boost in power at that power level. Try it on a 5-600 hp engine. The cat will choke it off a hell of alot more.

    Erik KrollErik Kroll8 ore fa
  • 14:54 straight answer for those who are looking Also the video shakes so bad 🤢so i had to dislike it😤

    Beka M.Beka M.14 ore fa
  • Man, don't you get that you have to completely re-tune everything to run without cat? Because I wonder why didn't your cat explode at first place? Probably you run poor mixture and slowly killing your engine with extra heat. Properly tumed you should have ~280 HP (+ a little of black smoke and some bad smell)

    Ilya DurnevIlya Durnev17 ore fa
  • Many years ago on a MGB that had a similar looking Coverter as your Miata and mine failed I renamed mine out with drill bits from both ends long nose pliers ,cold chisels and whatever else I coul find why ? Because I bolted it back on the car to look like it had the Converter on it highly illegal yes but I passed emissions every year for 14 years I did lean out my carburetor too for the tests

    Craig MonteforteCraig Monteforte20 ore fa
  • How you going to leave out the audio on a dyno pull? That's the main reason to a video of a pull. C'mon Editors

    The RodFatherThe RodFather22 ore fa
  • Zobe let’s skate together

    Chicken WingChicken WingGiorno fa
  • “BoostCreeps........T.M.”

    xZombiexHunterxxZombiexHunterxGiorno fa
  • After the straight pipe you have to retune it....

    Giovanni BarbagalloGiovanni BarbagalloGiorno fa
  • Just be sure of the legalities BEFORE decatting your car. Some places you can get away with it, others, you'll get a fine if caught, and in some places, if caught, you'll end up with a nice conversation piece as the plod give you your car back in the form of a 2-foot cube...

    gchampi2gchampi2Giorno fa
  • They stolpe the cat in my car so i vad to drive without one for 3 days

    Sigma MaleSigma MaleGiorno fa
  • you culd just use some steel bar and brake up that filter and just instal cat back

    pirotehnika na kvadratpirotehnika na kvadratGiorno fa
  • as a welder don’t push with mig is a strictly drag welding method to get the best pen

  • Great Video! Never too much info!

    Blaine HouserBlaine HouserGiorno fa
  • Its a pity you didn't do your tests with a normally asperated car as I have.

    Evangelist Marc WhitfordEvangelist Marc WhitfordGiorno fa
  • Is it possible to do a dog delete?

    Anonymous PersonAnonymous Person2 giorni fa
  • Thank you for explaining the test pipe definition to guys who spend 300 on test pipes for no reason 🙂 they they got rip-off

    fullpeladasfullpeladas2 giorni fa
  • I dont think this example is worth it unless you can somehow run more boost to make it more of a bottleneck. 5 hp for dumping way more shit in the air isnt worth it

    Riley HanceRiley Hance2 giorni fa
  • How are the Donut cars passing emissions in California?

    KnowsPickerKnowsPicker2 giorni fa
  • Taking notes on a scrap of cardboard with a sharpie. Perfect.

    Tom KrugerTom Kruger2 giorni fa
  • its more about very smooth airflow without turbulence, but that all happens at the mani, usually

    Wesley KingWesley King2 giorni fa
  • Why delete the cat just gut the thing an leave the body of it in tact

    David MackiesonDavid Mackieson2 giorni fa
  • So short answer: Nah

    Julian Felipe Granados FlórezJulian Felipe Granados Flórez2 giorni fa
  • well then it‘s good that someone just did a free cat delete for me! just gotta replace all the parts they damaged and also they forgot to replace the cat with a straight pipe but hey free cat delete i guess

    Ralf AnkeRalf Anke2 giorni fa
  • Just port the wastegate port.

    Robin GroeneveldRobin Groeneveld3 giorni fa
  • Mig welding is always pushing movement not dragging. Only welding method that is done by dragging is rod welding. I’m a professional welder and i can guarantee you that the weld is not solid if done by dragging. In this purpose it works well but if weldin something important like stairs, pipes, ships or oil platforms (really important thats why all the welds are ultrasound examinated) etc

    Lipl0xLipl0x3 giorni fa
  • You do know these tests were done when the Cat was first invented. It was pretty much common knowledge then, that there would be a loss of HP trading off cleaner air. You could have just googled this info.

    Old Man from Scene Twenty FourOld Man from Scene Twenty Four3 giorni fa
    • 💀💀💀

      Dahnzeig FrostenkampfDahnzeig Frostenkampf2 giorni fa
  • Actually it is 75% co2 and 25% argon

    S BaykoS Bayko4 giorni fa
  • Use eye protection Zach to keep that glint in your eye 100% natural.

    Ian PereraIan Perera4 giorni fa
  • This guy is a sleeper engineer

    Muhammad Aliff AhmadMuhammad Aliff Ahmad4 giorni fa
  • K - for Knowing the material. And I - for ignoring basic PPE :)

    A DA D4 giorni fa
    • This is my first time seeing Zach. He’s a keeper, do not let him go! If he requires a Billion Dollars/year, you better give it to him! He’s basically sold me on everything he touche

      alida flusalida flus2 giorni fa
  • I fuqin cant stand this clown.

    Jeffrey VaughnJeffrey Vaughn4 giorni fa
  • As a welder he gave a pretty good breakdown of what welding is

    Prince AmirPrince Amir4 giorni fa
  • DIYflamethrowers on IG and the same name for my website. I'm just a one-man business that makes them here in the USA, specifically Chicago.

    doire aintudoire aintu4 giorni fa
  • Are the ads worth the wait...nope.

    Stewart HaddonStewart Haddon5 giorni fa
  • Unless you are doing some major changes to the engine, there is no reason to delete the cat, because you can reach the limits of a stock turbo with just a tuner. And as he shows , the deleted cat interfered with the waste gate controlling the turbo at high rpm. So it's cheaper, better and easier to just take it to a tuner. The only time it makes sense is if your internal engine components can handle more power than the exhaust system can which point you are probably going to need an entire exhaust system anyway. And that's the real issue , if you build an engine to the point that you have to remove the cat, you probably need an all new exhaust system anyway.

    Glenn ChartrandGlenn Chartrand5 giorni fa
  • My cat saw the title of this video and now he seems upset with me ...

    Jagger BackJagger Back5 giorni fa
  • What if you do this conversion on a naturally aspirated car? What would be the results in your opinion?

    Lux ArmigerLux Armiger5 giorni fa
  • Good to know once my cat get's stolen I'll get extra 5hp

    Janer SulceJaner Sulce5 giorni fa
  • Good

    GameRecordChilloutGameRecordChillout5 giorni fa
  • Donut needs an anime series

    Alex MendezAlex Mendez5 giorni fa
  • If the weld has slag you drag, otherwise push your weld. Pushing your weld keeps the gas blowing forward, will save you from prosperity in your welds.

    Gage MartinGage Martin5 giorni fa
  • Pushing is preferred but pulling is ok when there is no choice because sometimes you HAVE to pull. But pushing creates a stronger weld. Pulling can leave a little crater in the weld where the actual joints of materials are. A cut and etch test proves this

    Kickin' Wing HotboiKickin' Wing Hotboi5 giorni fa
  • After the sponsor video subtitles are freaked up. Please fix it. Thanks.

    Samet ALTUNSOYSamet ALTUNSOY5 giorni fa
  • heres a follow up.. how much to the emissions change between the two setups if the car is properly tuned?

    Glen NewellGlen Newell5 giorni fa
  • A late buddy of mine used to call taking off a cat and installing a testpipe. "The 5min, 5hp gain" do he was dang close if the hp gain lol

    Dirt ShartDirt Shart5 giorni fa
  • Zach : great mechanic, okay welder.

    Walker SchererWalker Scherer5 giorni fa
  • DIYflamethrowers on IG and the same name for my website. I'm just a one-man business that makes them here in the USA, specifically Chicago.

    aola wiliaola wili5 giorni fa
  • This video is dedicated to John Powell of Powell Race Shop in Port Perry Ontario who said that he has never seen a dyno sheet ever showing that a "catless" downpipe made more power than a "catted"downpipe. also to all his sheep followers who claimed he was god when many many people(who knew more) pointed out his BS

    Twin TurboTwin Turbo6 giorni fa
  • Are those rbf1s?

    Josh GovierJosh Govier6 giorni fa
  • Next time you spend all this time and money on a car for our entertainment, make sure it's not a shitty Miata 🧡

    SwitchellmobbSwitchellmobb6 giorni fa
  • When doing a show like this it’s always a good idea to put on all the welding PPE. Gloves and sleeves are always recommend when welding. It not only protects you from sparks and hot metal but also the light given off from the welding process will damage your skin to the point of possible skin cancer. Please put on PPE so people watching don’t pic up bad habits. P.s. love this show otherwise!

    Bender BeermanBender Beerman6 giorni fa
  • Ok guys - I NEED that intro track - what is it? Who did that? Anything!

    Bartosz AndrzejewskiBartosz Andrzejewski6 giorni fa
  • I work at a parts warehouse and I love seeing parts we sell on money put. Like the pipes we got tons of thoughs exact brands sticker and all.

    Cody WoodCody Wood6 giorni fa
  • Ah, Pony Power, the new Horse Power.

    KalderKalder6 giorni fa
  • Love the mask wearing virtue signaling when working with no one within 50 feet in an open garage. Well done. You sir, are making a difference!

    Mark GuntherMark Gunther6 giorni fa
  • There were quite many cats wandering around our house. I deleted them with my rifle.

    Hannu HanhiHannu Hanhi6 giorni fa
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      Lerma FernandezLerma Fernandez4 giorni fa
  • So how did the rear window shatter? The defrost elements getting overloaded?

    brenden walkerbrenden walker6 giorni fa
  • Did he measured the inner diameter of the exhaust manifold and the test pipe and making sure they have same inner diameter?

    KubKub7 giorni fa
  • Leave the cat on, put an electric exhaust dump before the cat controlled by the boost controller. So when you mall crawling you don't have to deal with the smell, and you bypass the cat, muffler and 10' of pipe when its time to go.

    Janky ShackJanky Shack7 giorni fa
  • Is a CAT delete worth it? The Car Community: Yes! The environment: no. The EPA: Not at all my friend

    Spectacular SpaghettiSpectacular Spaghetti7 giorni fa
  • You should've added a HighFlow Cat to compare with the test pipe and Cat

    The EcstaticThe Ecstatic7 giorni fa
  • TÜV sagt nein!

    Сэр ЛанланланСэр Ланланлан7 giorni fa

    LocalsOnly . JpLocalsOnly . Jp7 giorni fa
  • This is probably a dumb question but why is more boost bad?

    hudsonhudson7 giorni fa
  • I just drilled a hole through the honey cone with an old 5/16 long wood bit,it still passes inspection (by LOOKS)lol//I was told the cone was pluged so that fixed it

    chrispy Criterchrispy Criter7 giorni fa
  • I’d be interested in seeing how a high flow cat compares to the test pipe and the stock cat.

    Dj Not NiceDj Not Nice7 giorni fa
  • When you Weld please remember to cover your hands and arms So the rays won't make contact with your skin😁 a tip from my teacher

  • Dont like this guy

    Eugene SwaztekkerzEugene Swaztekkerz7 giorni fa
  • Slag=drag Flux-cored (FCAW) drag/pull torch in direction of weld Solid wire (GMAW) push torch in direction of weld

    matthew Lmatthew L7 giorni fa
  • 5:58 somebody needs gloves lol

    João Guilherme Bezerra AlvesJoão Guilherme Bezerra Alves8 giorni fa
  • Cat removal on a K Series is by far the best way to free up power. However on other 2.0 NA engines I’ve had from other manufacturers (Renault), the Decat had a negative effect, due to the scavenging of the engine.

    Josh WattonJosh Watton8 giorni fa
  • “Yo I need to put the hose on my shoulder to not get caught on anything” immediately welds with hose on lap

    hoiy vinosahoiy vinosa8 giorni fa
  • If you're worried about boost creep. just port and increase the size of the waste port/flapper... Not a big deal

    0ttoman0ttoman8 giorni fa
  • But how did it SOUND?

    BroclamBroclam8 giorni fa
  • Why waste your time with losers investors when you can earn up too $1200 with only $100 minimum investment Ask me how to get started

    Victoria Williams HVictoria Williams H8 giorni fa
    • I LOVE cardboard and sharpie note pad. Am I the only one?

      hoiy vinosahoiy vinosa8 giorni fa
  • Way more power =7hp! Frankly I would rather have clean air?

    Dick MickDick Mick8 giorni fa
  • This is a legit learning video

    Mason HallMason Hall8 giorni fa

    Frank289100Frank2891008 giorni fa
  • took my cat off in my 85 monte carlo 305, and she sounds a little raspy but when I get some mufflers should sounds nice, also switch up to an x pipe soon.

    Robert PetersRobert Peters9 giorni fa
  • 14:45

    Josefino MercedJosefino Merced9 giorni fa
  • My stupid ass looking at the title confused: "Why and how do you delete a frickin' cat?!"

    yoofer121yoofer1219 giorni fa
  • How do you know you're friend's window broke because he didn't disconnect the battery?

    ATF Ace.ATF Ace.9 giorni fa
    • You guys live my dream life

      wnnalis cioovwnnalis cioov8 giorni fa
  • I already know how to weld it’s pretty easy now but the only thing is tig is fucking hard but once you get the hang of it it’s easy also I’m surprised you don’t have a tan 😂😂😂😂😂 with that shirt what your secret

    Dar WinDar Win9 giorni fa
    • Would love to see the same thing but with a NA engine!!

      wnnalis cioovwnnalis cioov8 giorni fa
  • Your mig gun cable should be kept as straight as possible to prevent bird nest. And you didn’t wear a jacket which is not good as mig welding produces several different lights, infrared, ultraviolet, and there’s another I can’t think of and it produces radiation, not wearing proper ppe is rather reckless.

    Andy GoddenAndy Godden9 giorni fa
  • Just put your cat back in before you need an emissions test 😂

    TheSaxAppealTheSaxAppeal9 giorni fa
    • Next on EPA's list for huge fine for stupidly removing his cat.

      miko foinmiko foin9 giorni fa
  • I want to delete my wife's cat. Not the catalytic converter in her car. I mean her pet.

    MarvMarv9 giorni fa
    • Nice eye protection, should stress how important.

      miko foinmiko foin9 giorni fa
  • Why not a new high flow converter

    Mark McclendonMark Mcclendon10 giorni fa
  • 5:38 the “machin” xd

    Benja Mtz SBenja Mtz S10 giorni fa
  • I LOVE cardboard and sharpie note pad. Am I the only one?

    Nicholas ThompsonNicholas Thompson10 giorni fa
  • lol, Rhodium or ROADium!

    PunkinhedPunkinhed10 giorni fa
  • It's always worth it, power, sound, crackle, all you need is a simulator to get around it

    frank wfrank w10 giorni fa
  • You’re in LB area which equals illegal, not worth it in my book. Plus think of the environment....just saying

    Peter HorvathPeter Horvath10 giorni fa
  • Okay so I’m sorry to do this but it’s not a torch it’s a freaking whip know your facts

    Cody GroatCody Groat10 giorni fa
  • The biggest benefit of a cat delete is the reduced risk of it clogging and overheating the exhaust and cylinder with backed up heat

    joshdrobny93joshdrobny9310 giorni fa
  • Paul rudd look alike

    rr10 giorni fa
  • Would love to see the same thing but with a NA engine!!

    Outlaws driftersOutlaws drifters10 giorni fa
  • You guys live my dream life

    Anthony ArroyoAnthony Arroyo10 giorni fa
  • I can just imagine the EPA knocking on your door after you made this video

    wnnalis cioovwnnalis cioov10 giorni fa