Is a Cat Delete Worth It?

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Donut Media

Πριν 17 ημέρες

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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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Lux Armiger
Lux Armiger Πριν ώρα
What if you do this conversion on a naturally aspirated car? What would be the results in your opinion?
Janer Sulce
Janer Sulce Πριν 3 ώρες
Good to know once my cat get's stolen I'll get extra 5hp
GameRecordChillout Πριν 5 ώρες
Alex Mendez
Alex Mendez Πριν 6 ώρες
Donut needs an anime series
Gage Martin
Gage Martin Πριν 9 ώρες
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.
Kickin' Wing Hotboi
Kickin' Wing Hotboi Πριν 9 ώρες
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
Samet ALTUNSOY Πριν 10 ώρες
After the sponsor video subtitles are freaked up. Please fix it. Thanks.
Glen Newell
Glen Newell Πριν 11 ώρες
heres a follow up.. how much to the emissions change between the two setups if the car is properly tuned?
Dirt Shart
Dirt Shart Πριν 13 ώρες
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
Walker Scherer
Walker Scherer Πριν 15 ώρες
Zach : great mechanic, okay welder.
aola wili
aola wili Πριν 17 ώρες
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.
Twin Turbo
Twin Turbo Πριν 18 ώρες
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
Josh Govier
Josh Govier Πριν 20 ώρες
Are those rbf1s?
Switchellmobb Πριν 20 ώρες
Next time you spend all this time and money on a car for our entertainment, make sure it's not a shitty Miata 🧡
Bender Beerman
Bender Beerman Πριν ημέρα
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!
Bartosz Andrzejewski
Bartosz Andrzejewski Πριν ημέρα
Ok guys - I NEED that intro track - what is it? Who did that? Anything!
Cody Wood
Cody Wood Πριν ημέρα
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.
Kalder Πριν ημέρα
Ah, Pony Power, the new Horse Power.
Mark Gunther
Mark Gunther Πριν ημέρα
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!
Hannu Hanhi
Hannu Hanhi Πριν ημέρα
There were quite many cats wandering around our house. I deleted them with my rifle.
brenden walker
brenden walker Πριν ημέρα
So how did the rear window shatter? The defrost elements getting overloaded?
Kub Πριν ημέρα
Did he measured the inner diameter of the exhaust manifold and the test pipe and making sure they have same inner diameter?
Janky Shack
Janky Shack Πριν 2 ημέρες
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.
Spectacular Spaghetti
Spectacular Spaghetti Πριν 2 ημέρες
Is a CAT delete worth it? The Car Community: Yes! The environment: no. The EPA: Not at all my friend
The Ecstatic
The Ecstatic Πριν 2 ημέρες
You should've added a HighFlow Cat to compare with the test pipe and Cat
Сэр Ланланлан
Сэр Ланланлан Πριν 2 ημέρες
TÜV sagt nein!
LocalsOnly . Jp
LocalsOnly . Jp Πριν 2 ημέρες
hudson Πριν 2 ημέρες
This is probably a dumb question but why is more boost bad?
chrispy Criter
chrispy Criter Πριν 2 ημέρες
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
Dj Not Nice
Dj Not Nice Πριν 2 ημέρες
I’d be interested in seeing how a high flow cat compares to the test pipe and the stock cat.
MRJDSWAGGER Πριν 2 ημέρες
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
Eugene Swaztekkerz
Eugene Swaztekkerz Πριν 2 ημέρες
Dont like this guy
matthew L
matthew L Πριν 2 ημέρες
Slag=drag Flux-cored (FCAW) drag/pull torch in direction of weld Solid wire (GMAW) push torch in direction of weld
João Guilherme Bezerra Alves
João Guilherme Bezerra Alves Πριν 2 ημέρες
5:58 somebody needs gloves lol
Josh Watton
Josh Watton Πριν 3 ημέρες
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.
hoiy vinosa
hoiy vinosa Πριν 3 ημέρες
“Yo I need to put the hose on my shoulder to not get caught on anything” immediately welds with hose on lap
0ttoman Πριν 3 ημέρες
If you're worried about boost creep. just port and increase the size of the waste port/flapper... Not a big deal
Broclam Πριν 3 ημέρες
But how did it SOUND?
Victoria Williams H
Victoria Williams H Πριν 3 ημέρες
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
hoiy vinosa
hoiy vinosa Πριν 3 ημέρες
I LOVE cardboard and sharpie note pad. Am I the only one?
Dick Mick
Dick Mick Πριν 3 ημέρες
Way more power =7hp! Frankly I would rather have clean air?
Mason Hall
Mason Hall Πριν 3 ημέρες
This is a legit learning video
Frank289100 Πριν 3 ημέρες
Robert Peters
Robert Peters Πριν 3 ημέρες
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.
Josefino Merced
Josefino Merced Πριν 3 ημέρες
yoofer121 Πριν 4 ημέρες
My stupid ass looking at the title confused: "Why and how do you delete a frickin' cat?!"
ATF Ace.
ATF Ace. Πριν 4 ημέρες
How do you know you're friend's window broke because he didn't disconnect the battery?
wnnalis cioov
wnnalis cioov Πριν 3 ημέρες
You guys live my dream life
Dar Win
Dar Win Πριν 4 ημέρες
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
wnnalis cioov
wnnalis cioov Πριν 3 ημέρες
Would love to see the same thing but with a NA engine!!
Andy Godden
Andy Godden Πριν 4 ημέρες
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.
TheSaxAppeal Πριν 4 ημέρες
Just put your cat back in before you need an emissions test 😂
miko foin
miko foin Πριν 4 ημέρες
Next on EPA's list for huge fine for stupidly removing his cat.
Marv Πριν 4 ημέρες
I want to delete my wife's cat. Not the catalytic converter in her car. I mean her pet.
miko foin
miko foin Πριν 4 ημέρες
Nice eye protection, should stress how important.
Mark Mcclendon
Mark Mcclendon Πριν 4 ημέρες
Why not a new high flow converter
Benja Mtz S
Benja Mtz S Πριν 4 ημέρες
5:38 the “machin” xd
Nicholas Thompson
Nicholas Thompson Πριν 4 ημέρες
I LOVE cardboard and sharpie note pad. Am I the only one?
Punkinhed Πριν 4 ημέρες
lol, Rhodium or ROADium!
frank w
frank w Πριν 5 ημέρες
It's always worth it, power, sound, crackle, all you need is a simulator to get around it
Peter Horvath
Peter Horvath Πριν 5 ημέρες
You’re in LB area which equals illegal, not worth it in my book. Plus think of the environment....just saying
Cody Groat
Cody Groat Πριν 5 ημέρες
Okay so I’m sorry to do this but it’s not a torch it’s a freaking whip know your facts
joshdrobny93 Πριν 5 ημέρες
The biggest benefit of a cat delete is the reduced risk of it clogging and overheating the exhaust and cylinder with backed up heat
r Πριν 5 ημέρες
Paul rudd look alike
Outlaws drifters
Outlaws drifters Πριν 5 ημέρες
Would love to see the same thing but with a NA engine!!
Anthony Arroyo
Anthony Arroyo Πριν 5 ημέρες
You guys live my dream life
wnnalis cioov
wnnalis cioov Πριν 5 ημέρες
I can just imagine the EPA knocking on your door after you made this video
Deadsy Padilla
Deadsy Padilla Πριν 5 ημέρες
Nice eye protection, should stress how important.
alan connelly
alan connelly Πριν 5 ημέρες
Next on EPA's list for huge fine for stupidly removing his cat.
Life Saving Defense
Life Saving Defense Πριν 5 ημέρες
How old was the “stock”cat? Need a new cat to compare if it was used as old cats do have hairballs
67 Πριν 5 ημέρες
Skip to14:40 if you can weld and are interested only in the results
wnnalis cioov
wnnalis cioov Πριν 5 ημέρες
I need a miata!!!
Anthony Brown
Anthony Brown Πριν 5 ημέρες
Romano Naidoo
Romano Naidoo Πριν 5 ημέρες
Zachary, please come home. We’re worried about you ever since you left with that “car from Japan” you kept going on about. Your mother and I miss you very much. Love, dad. P.S. Please do a video on high torque starters and if its worth it. The old Camry doesn’t turn over like it used to.
goalmaker88 Πριν 5 ημέρες
That’s a ton of hp on a Miata
ice45k Πριν 5 ημέρες
Came her for a cat delete, got a math lesson and a bandsaw plus welding tutorial. ☝
Shauka Hodan
Shauka Hodan Πριν ημέρα
‘Welding is a money pit’ Very true, but your welder does have a better HD display than my TV
Syazzy Slackster
Syazzy Slackster Πριν 6 ημέρες
Miata LSD next!
Branden Waltz
Branden Waltz Πριν 6 ημέρες
Breaks down every aspect of welding and proceeds to weld with no gloves. Awesome
Squibly Studios
Squibly Studios Πριν 6 ημέρες
Rob Althuizen
Rob Althuizen Πριν 6 ημέρες
Cancer exists so wear long sleeves when ur welding.
Kian Castillo
Kian Castillo Πριν 6 ημέρες
Body kits in Miata
Dimitrios F
Dimitrios F Πριν 6 ημέρες
Good to see I'm not the anyone that uses pieces of cardboard and a marker.
baloo21 Πριν 6 ημέρες
It's just not worth deleting the cat in my opinion. Crazy why so many people do that on their daily driver.
RetroCNY Πριν 6 ημέρες
Ah, the good old test pipe. Something I've done on nearly every Honda I've ever owned, much to my neighbor's dismay. I eventually got smart and just did header back exhausts but before I had money, cat deletes with a ghetto ass test pipe rigged in it's place was the ticket baby. Who cares if it made more power, it sounded like it did and that's all that mattered to 19yr old me.
Leonard Krauss
Leonard Krauss Πριν 6 ημέρες
How the hell do leave hands bare in the beginning!,
B Gr
B Gr Πριν 6 ημέρες
I need a miata!!!
mistamontiel00 Πριν 6 ημέρες
Musics please n grace yawl
mistamontiel00 Πριν 6 ημέρες
miko foin
miko foin Πριν 6 ημέρες
Anyone else just think to themselves “Damn, his hair is fantastic” ?
Maciej Sieradzan
Maciej Sieradzan Πριν 3 ημέρες
Yes xD
Eric Ernst
Eric Ernst Πριν 6 ημέρες
If you add a blow-off valve, you can blow off the excess pressure on the intake side. Cheaper than a new turbo.
Eric Ernst
Eric Ernst Πριν 6 ημέρες
0:36 "we got a welding machine."
Oscar TheGrouch
Oscar TheGrouch Πριν 6 ημέρες
13:22 --this explanation has rap meme written all over it. All the moves are moved.
Adam Baldwin
Adam Baldwin Πριν 6 ημέρες
Grind the wastegate hole. This was always a common mod for Mitsubishi turbos with internal wastegates. The flapper is plenty big enough to cover a larger hole, but the wastegate hole itself wasn't big enough to bypass enough exhaust gas, hence it goes through the turbine itself, increasing your boost. Shouldn't take more than a couple hours or so to pull the turbine housing off and grind that sucker. I saw you were making about 235 and I guessed you'd make at least 250 with the cat bypass. Cat bypasses are no joke. If you're trying to make power at the track, a cat bypass is a no-brainer. PS- I love all of Zach's content. He's great, and he's taught me a lot. Dude knows what the hell he's doing!
miko foin
miko foin Πριν 6 ημέρες
You need a 2 post! Hate to see people with your level of talent still, roughing it, on the concrete!!! Lol
francis canavan
francis canavan Πριν 6 ημέρες
Cool vid!!! It’s hard to make an apples to apples comparison, Jew to mapping, but really, higher exhaust flow when tuned in gonna make more power. Love the Chanel 👌🏻👊🏻
Thunder Con
Thunder Con Πριν 6 ημέρες
I have a catted bbk xpipe on my mustang and I’m constantly messing with the tune and upstream 02 sensors. Regardless what you run I see a lot of young kids pulling cats off their cars and the fuel trims are off the wall getting 3mpg and running like dog poo pop
garrett johnson
garrett johnson Πριν 6 ημέρες
It’s still a Miata at the end of the day is 4 horsepower worth it? leave your cats on for emissions and smells.
Prignon Yves
Prignon Yves Πριν 6 ημέρες
For 5 hp just keep the cat, be legal don't pollute that much and be cool at your inspection ...
M G Πριν 6 ημέρες
If I wanted to see ads, I wouldn't be paying for youtube premium.
auto mech
auto mech Πριν 6 ημέρες
7:40 classic , no matter you have equipment we do it the way we like it
Evan Birmingham
Evan Birmingham Πριν 6 ημέρες
Add a few drops of oil or wd40 while it cuts. It will help it cut, reduce heat and save you on blades.
Daryl Joseph
Daryl Joseph Πριν 6 ημέρες
I wonder what this experiments results would be in a N/A engine like an LS or a BMW S62?
AD L200
AD L200 Πριν 6 ημέρες
I bloody hate advertisements
Jomar Cordero
Jomar Cordero Πριν 7 ημέρες
Y que pasa si le montas un catalistico mucho más grande ..
Chris Brown
Chris Brown Πριν 7 ημέρες
Not that I would ever do this myself ***cough*cough*** but I have "heard" you can remove the cat, beat all the innards out, then put it back on the car. If the cat goes bad, that may help a few people that do not have the $800 replacement cost (for my car).
DaBigKahuna Πριν 7 ημέρες
Zach: takes catalytic converter off EPA: *angry non-car people noises*
Jeremy Utley
Jeremy Utley Πριν 7 ημέρες
Great test. I think you need a bigger Boost set up so that we can see the real difference. Or maybe just go naturally aspirated. I'm pretty sure though if you have a exhaust manifold catalytic converter a header works better.
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