Removing the catalytic converters on my 99 Silverado - True Straight Pipe! - So loud!

[@TheDaninator]

Loud enough yet? Nope, more fun to come with this truck.

[@asgarage6688]

Hell yea!

[@connerwalker4450]

Get you some 5 inch tips 😂

[@alecon94]

How long did this take u?

[@TheDaninator]

@@alecon94 maybe an hour

[@KATASTROPHE69S]

Did your truck run rough after you did this?

[@wesleyd4310]

I have no idea how he doesn’t have a smile on his face when doing those pulls! 🤣

[@TheDaninator]

I was smiling on the inside for sure! Holding the camera, driving a sketchy truck on uneven ground...while flooring it, is no easy task! LOL

[@kblopp]

I feel sorry for the tweeker that steals your cats.

[@ohiostate9156]

I have a 2000 silverado and that catalytic converters plugged which caused it to run horrible. I only really drive it locally to town and back in the winter to keep from driving my new silverado in the salt i do keep the old truck sprayed every fall before winter so rust is almost not an issue still. A shop quoted me a huge price to have them replaced so I brought it home and they went bye bye. Been like this for a couple years now. Good enough for what I use it for.

[@roberthamilton9245]

What does it do to ur computer with the O2 sensors reading?

[@TheDaninator]

It triggers the check engine light. I believe it is code P0420

[@fish_R_stinky69]

You use an O2 spacer to turn off the engine light.

[@skinnypedal6837]

I love the sound with a flowmaster 40 on it, that's what I had on my 5.3 and it sounded so good and was a really deep tone

[@deavongreen3010]

Do you have it now is it good to do that to the truck

[@guitarguy3221]

Got the same setup w ebay headers & magnaflow cats it sounds pretty good

[@fish_R_stinky69]

Noooooo, mufflers suck!

[@dentondunn4346]

Flowmaster 40 series is the best muffler for am 5.3. They’re not too loud in the cabin, no drone sound and sounds beautiful when you’re driving it. That’s my favorite setup. Never went straight pipe before cause you can’t carry a conversation inside the cab without screaming to understand one another 😊

[@david-qc3pu]

I have a ram 1500 5.2 and I've done my exhaust every way possible besides true duals and I loved the sound with gutted cats and no mufflers but it droned out the cab too much so I put a glass pack on it and it's loud but tolerable in the cab now.

[@christopherwilson7698]

You could’ve made $500 if you would’ve cut the cats out without damaging them like that and scrapped them Knowledge is priceless

[@justinmorgan8196]

I sold some off of a 2000 25004x4 for $700. Called the guy and he came and picked them up. I’m looking at buying a 02 2500 4x4 for $1300 and selling the cats off it to recoup some of that money. It needs a front seal on the transmission

[@justinmorgan8196]

I was looking for a way to do it without check engine light popping up

[@outsidetheboxoutdoorservic2130]

Gotta hide it from the cops

[@jason6325]

Bullshit. You don't get more than $100 a piece for gm cats. Been buying and selling them for 15 years. Knowledge sure is priceless

[@ImJustAutistic]

@@jason6325 prices were a bit different a year ago

[@hilljackzack7284]

This is the most stereotypical Midwestern truck I’ve ever seen! I would daily that lol 😂

[@greygrizzlyoutdoors1764]

Just did this the wat you did, easiest way but defenetly the dirtiest way. Only one of my cats the one on passenger side on my 2002 sierra had anything in it, got the driver side open and nothing is in it at all, is that normal somtimes?

[@TheDaninator]

I don't think it's normal, but I suppose it is possible that the catalyst material may have broken loose somehow and over time blew out the end of the exhaust.

[@MuddRipper]

ive got a catback flowmaster on my 5.3 and absolutely love the sound, been thinking about just going catback dual straights, but im also stuck in between keeping it a bit lower profile and still pretty loud, or changing the sound and maybe sounding like shit just to get more volume.

[@87fubar]

should try the mufflers now that you have no cats

[@TheDaninator]

I’m on it 😎👍

[@dustycoots5320]

Man I have never posted a comment on someone's video before but dude you really just made me 💩 all in my pants. I'm not trying to make fun of you or be disrespectful I just thought I'd let you know that all that waffle cone junk you just cut out of there is honestly worth more than GOLD. I got $1,000 for the one off my Ford E250

[@brandonsmith340]

I have a bunch off old cars and trucks I had and can't sale them no where.where do I sale them.

[@scotthendrickson8509]

​@@brandonsmith340 *sell them

[@mazlosoutdooradventures8594]

Don't worry if them ugly welds leak just grind em clean a bit and reweld it. Nice first weld if it sticks

[@frightenedskillet1051]

Love hearing it echo

[@Z71_Kevin]

You gotta bounce it off the rev limiter a few times to get the full affect 😂🤘🏻

[@rudymartinez4198]

MYes okay I opposednnlllnj

[@rudymartinez4198]

Nkknnnnnnnnnnnn

[@quag6844]

The older 5.3’s don’t “bounce” lol they just stay at red

[@hotwheelsracer6380]

@@quag6844 Your thinking of the Cat-Eye's (03-07) the electronic throttle body keeps it from bouncing the rev limiter. On the said model year truck in this video (99-02) Has a cable driven throttle body and you can let it sit there and just hammer away off the rev limiter

[@Rusty.trusty]

@@hotwheelsracer6380 I got a cateye and can confirm. It’s fucking miserable 😂 I would love to be able to just bounce the pig off the limiter but it has such a soft limiter it’s sad

[@deanyanko3326]

crusty but trusty, my "95" still good engine over 200,000.clean crack on exhaust behind cat. could hot exhaust heat up trans fluid in pan nearby ? Thinking of running straight pipe will it affect gas milage ? allowed in rural area.

[@thrillbilly9785]

Huh?!! What?!!! How’s the throttle response? If you delete your cats won’t it throw a check wallet light due to the O2 sensors?

[@TheDaninator]

Check wallet light was already on before I gutted the cats 😂

[@MotoModzofficial]

Do you hit the gas until the governor kicks in

[@denwin8811]

When you eliminate the cats will the o2 sensors throw codes?

[@mgkelley2609]

Yes

[@Unknown-dc3wm]

i was laughing so hard on that skit you did looool that was golden i own a 1998 5.7L ext cab c/k 2wd

[@chetgingerich2551]

This answers a question I had. Too much interior drone for me on my daily driver. But it sounds great!

[@Youtubealgorithimagent52]

Dang i can even see the sound 😳

[@Z71_Taylor]

Put a 6” diesel exhaust tip on it to see how much it changes the sound

[@kylewellsby2176]

I have a 10 inch diesel one on mine

[@PhilTooTrill]

What are those

[@jeffalan6339]

Now that was funny. Better than cable. I'm debating between Corsa and Borla cat back system.

[@fish_R_stinky69]

Straight pipes.

[@famadrid78]

Wasn’t sure if those are leaves or rust flying out the bed

[@tristanferrell9969]

Did doing this make you have a check engine light on at all

[@TheDaninator]

Yes, this will definitely cause a check engine light

[@user-co1fs1dj1t]

Can anyone tell me how he cuts through them like butter, I’ve tried doing this and my grinder just is getting through even on regular exhaust tubing, it’s having a hard time cutting through

[@BrandonJZ71]

The into skit is perfect 🤣

[@fish_R_stinky69]

It's GODLY!🔥🔥🔥🔥🔥🔥

[@shawmansmash]

I watched this in my truck with subs. Damn she got that wubwub

[@bing12345678901]

Cool! But I'm curious, did this cause havoc with your downstream o2 sensors, or no backpressure issues?

[@jeffalan6339]

It throw a code with the rear o2 sensors are to read the after cats.

[@mitch5699]

@@jeffalan6339 what do I do if the battery is dead and the code is erased ...?

[@sharpie132]

Get it tuned out

[@buzztrucker]

Just install a defouler on the downstream

[@juulski7821]

Someone help please. My drivers side cat on my 04 1500 was clogged BAD so I cut a hole made a little door thing peeled it open and gutted it all out. It looked like coal lmao but now my truck is insanely loud will that damage the engine ??? No I did not weld it back or close it it’s just there. Open. Btw my truck was already deleted under the cab. Has no exhaust muffler or anything.

[@shanekasowski6238]

Headers and straight pipes are the best

[@oscarcastaneda5730]

Is it just a catalytic and muffler delete on it?

[@TheDaninator]

Yes

[@LavisshTv]

check engine light?

[@idkwhoknew908]

What was all that Rattling in side?? Fix it.

[@ricardocenteno375]

Did you put sensor extenders on o2 sensors

[@caden05]

Are there any cons to deleting you cats like mess with your o2 sensors or anything?

[@buzztrucker]

If you just install a defouler downstream you can pass emissions and avoid CEL.

[@gordonenquist36]

Sorry to change the subject but that gas tank door, I have never seen a rusty one like that B4. Are you in Winnpeg ?

[@trevorr5524]

Gosh the intro was gold

[@mikewieling220]

Bud the truck sounds beast, keep up the great content

[@DakotaHunt-w1q]

I thought straight piped was cut before the muffler

[@sethwilliamson3667]

Will hollowing your converters out cause a check engine light?

[@TheDaninator]

Yes, most likely.

[@eliasmora715]

does it still have a muffler???

[@seanbrooks4273]

Did you spit any engine codes after doing this set up?? I've got a 98 and can hear the honeycomb rattling. With the cat converter bs going on I was very curious in trying this. And in about 1 more year no emissions is a +

[@prestonsevits8014]

Yes, engine codes will appear unless the 02 sensor is bypassed and or before the catalytic converter and no second 02 sensor behind the catalytic converter receiving the post cat reading.

[@ninjanix7288]

Honestly that sounds sick🎉 🛻💨🔥🔥🔥🔥🔥💥👊🏻👍🏻

[@SirtenThomas]

Do you still have the muffler

[@jerrynene8166]

Does it smell bad man because I did the same and mine smell Terrible

[@3Wheels1Block]

When you fires it up it sounded like you were getting ready to hit the drag strip😅

[@TheDaninator]

Ooh, that’d be fun!

[@hotironforge1385]

I’m actually thinking of pulling the cats off my 4.8L and putting a 12” cherry bomb glass pack. It’s got an exhaust dump right behind the cab. Would you wanna do a test to see what that would sound like?

[@doinggodswork4789]

Idk man cherry bombs are really ricey sounding look into like flowamasters more aggressive

[@TheBennyneb]

Always best intros haha

[@yourwindowguy1]

Heck yeah !!

[@Valdemar-Perez-III]

I did a cat delete too. Sounds loud asf

[@ramonperez6767]

Good job boy,good job.

[@jameshall4385]

Have you gotten the phone call from the EPA yet. I think that crime is punishable by the death penalty. Sounds great

[@TheDaninator]

They may have called. I don't answer numbers I don't recognize, LOL

[@sardar7982]

Did it trigger the check engine light?

[@liamdye0941]

Yes it does

[@sodiumvapor13]

Subbed cause of the intro

[@ElPerc30]

Holy shit that's literally my truck but extended cab

[@rad1ist]

The one thing you left out does it still have stock muffler ?

[@chrisdavis3433]

He literally said it's mufflerless...

[@Starkid1236offical]

You should do a 8.1 vortec swap on the GMC.

[@Stormtrooper_98Trd]

Subbed for the intro funny as hell

[@randylal1761]

The rigs a savage now in the 🇺🇸 streets what!!! There's don't bark like us feel me

[@randylal1761]

Aaarrrr aaarrrr aaaarrrr USA ON THE PEDAL GET SOME YALL WANT SOME OUR STREET MUSCLE CARS ARE HOOOD. STEAIGHT HOOOD!

[@BradHuey1992]

Try a thrush welded muffler with no cats.

[@fromotion3976]

Just gutted $500 in converters brother shoulda cut em off and put a pipe in put some money in ur pocket

[@KsKaylor]

That’s bad ass, the sound finally matches the look of the truck

[@acrazycanuck78]

Those cats are going for $600 right now...

[@RonnieTheThird]

Where can you sell them?

[@DustinKeating-yk3vq]

Looks like some good deer hunting out where you at

[@MetalRocker94]

Wow, in terms out loudness..it didn't make all that much difference. Just made it deeper, bassier, and throatier. It is a little more raspy and pops more. I'd say DB rating would be about 100 on cold starts. Revs, it probably topped 115 or 120. Cruising would be about 105-110. If you want it louder, run true dual 2.5 inch pipes with 6 inch tips. If you still want loud but, a more refined sound. Put a x-pipe where it y's into the single and put a h-pipe about midway down the system.

[@TheDaninator]

Right on!

[@coryopand5912]

Nah it’s more like 123-124 db bud

[@JTsMechanicShop5748]

Now u gotta doit open headers

[@codyweien4513]

Lmao you knocked 500$ out on the ground 😂🤦‍♂️

[@classicxl]

you should have cut the cats off and taken them to a scrap yard and made a little money .i’m having the cats replaced on my 2000 gmc right now the rattling at idle is driving me nuts

[@jayspafford6518]

Bro I have this same looking truck 😭😭 single cab tho

[@asgarage6688]

I’m thinking about putting a flowmaster super 44 with stock cats on my 05 5.3, how do y’all think it would sound?

[@jerrynene8166]

Really quiet even the flow master super 10 was

[@asgarage6688]

@@jerrynene8166 false, I did it today and it sounds incredible

[@asgarage6688]

@@jerrynene8166 check my YT out for the sound of it

[@dennisdavila320]

How does this affect the performance due to the cats basically not being there? Im going to install long tube headers on my '98, but that requires removing the cats all together. Im concerned its gonna run like crap after. What can I do? Will it be alright? Please help.

[@ABONE1]

Did you ever put the headers on?

[@Bobthebuilder.69]

​@@ABONE1 nah he's scared. On the other hand, I live in the south and we don't have emissions testing. I haven't ran cats in all my years of driving.

[@randylal1761]

Sounds savage sounds like power it has under hood aye

[@Ripatune77]

NEW SUB HERE My 02' 2500HD truck just started "putt puttin" and stalling while idling lately, noticeable loss of power. Will doing this restore the power/acceleration loss (not concerned about fuel consumption)? BTW the truck has had 02 sensor and misfire codes for a while and I think it finally caught up to me. New truck on the horizon but trying to limp by a little bit longer. Thanks.

[@Ronathon02]

Since the cats are finally off, it would be interesting to hear all the cherry bomb exhaust products without the cats and compare them to your previous videos With cats👌👌👌

[@TheDaninator]

Stay tuned... 😎👍

[@timfelts4295]

Would love to hear these. I’ve got my 99 straight piped with no cats

[@johnwaldrop3211]

@@timfelts4295 with no cats, did you get a ck eng light ?

[@timfelts4295]

@@johnwaldrop3211 I did but I would always clear it before going for inspection once a year

[@brandonsmith340]

I'm doing this to all my trucks.

[@clappedout6140]

They’re called hollow cats where im from not really removed just removed the insides of a cat

[@johnwaldrop3211]

Did you get a ck engine light with the cats hollowed out ?

[@jasonfisher8569]

Someone’s stole my cats

[@ryanroberts1104]

I don't have to pass an emissions test, only a "tamper" test. Doesn't seem tampered to me!

[@cobyporschifer221]

No muffler ! With a CHERRY BOMB STICKER !😆 That's like having a D.A.R.E sticker on a drug dealer car.

[@Valdemar-Perez-III]

Looks like work rig

[@damxgopak457]

Might do that to my 7.4

[@danielyaworski6846]

You should drop a 454 or 490 in her and then see how she sounds

[@ryananderson8748]

That's funny man bout to do the same thing

[@user-tx4ew4ec8z]

Sounds way better then my clapped out shit box hahah my driver side header snapped on my first gen tundra I’ve been driving it like that till I can get it fixed but sounds like shit almost like metal slapping could be my cat shaking and hitting the header maybe idono

[@kyl75]

Going to do this to my 99 👍🏼

[@TheDaninator]

Sweet!

[@stevenkinnison8044]

I just took the cats off of my 02 Suburban. It has a thrush glasspack on it but it sounds like a straight pipe.

[@steffybael1245]

02 yukon xl here true straight duals dump just behind front wheels!

[@npb3871]

You should do a review on that titanium 125.

[@donaldbiden9361]

SMH. stock gm cats are worth like 400 ea should've just done a true cat delete. what a waste

[@ismaelhernandez806]

What size of pipe you install?

[@lenrookus5000]

Should of cut the cats off and scraped them. Probably worth $100 a piece at the scrap yard. They have Platinum in them.

[@daddyosink4413]

Thought about cutting the cat out of my 96 silverado and putting a cherry bomb in its place🤔

[@TheUndertoe]

Do it

[@isaisaucedo8978]

Please never use a cut off wheel with out guard believe me if that thing ever snaps you will b selling ur car just to pay the hospital bill the most dangerous thing ppl can do when cutting metal

[@ericboga9193]

Wear a mask. That stuff is deadly when you breath it in.

[@kellismith4329]

What do you suppose that does to the exhaust if it is deadly ?

[@youngngchvzz6372]

Can you remove the cats on the camaro should be a nice video.

[@TheDaninator]

I may just do that

[@lenrookus5000]

Now its a trailer park truck

[@chefntoast]

"Sparks are hot"