ok can we all agree we have thought of this because we dont want to spend money

For people thinking this affects the environment greater, it doesn't. He drilled after the catalytic converter, and before the muffler. The muffler only "muffles" the sound. Basically the exhaust is the exact same emissions level as before just louder. The only danger is potentially rust and exhaust fumes in the car.

Got the same plan here. I dont need it too loud, dont wanna waste money and time for an electric valve also. Just drill some holes until the volume is right and can go back to original with just a pipe clamp.

For anyone wondering, I did this to my 1994 MJ triton since you can’t get decent aftermarket mufflers that will fit. Putting 5 3/8 inch holes, and it is LOUD. it’s not extremely obnoxious, but you’ll hear it a block away no issues, and it created a lot of back fire when you’re at higher speeds and revs, but I love it, just got to really crank the music to hear it lol.

Really should of explained to the less Informed that the drilling needs to be made after the catalytic convertor, just before the muffler and nowhere around or before the oxygen sensor. And then explained why. You can't smell those gases before they hit the convertor and can be potentially life threatening or cause serious illness if not drilled correctly.

3:18 There are times I'm on a job that requires eye protection and I think it's bullshit, but when people do things like this without any eye protection my gut sinks.

Got bored, was meant to wash the car and ended up drilling holes 😂

This is not dumb, it works!! After the Borla exhaust I bought for my 2005 mustang GT was too quiet, I did this mod exactly and it sounded amazing I got compliments on it all the time! Then, I also did it to my next vehicle, a j k Wrangler... And while it wasn't as good as the mustang, it still sounded very good and extremely similar to the aftermarket exhausts I heard for the Wrangler. Now, I recently did it 2 mi 2015 Mazda CX-5, and again the results have been excellent. If I had the bread to buy inexpensive cat back I would certainly do so, but on a tight budget this works really well and does not affect power or fuel efficiency, at least not that I have noticed in my pretty extensive research lol. I started off with drilling one small hole literally just before the muffler flange, then I drilled that one out larger, to about 1/8 inch I think. The mustang was dual exhaust, so I did this on both sidesmustang was dual exhaust, so I did this on bowl sides, and ended up with about 5 holes on each side LOL. For the Jeep and Mazda, I only drilled out a couple holes. If you do this be aware, you can always make it louder, but each hole increases the sound, and you can't undrill lol (although u could plug it). People can say what they want, but everyone loved the sound of the Mustang, especially after I added intake and a tuner. Once I added those mods, the thing ripped big time! It was basically a very loud version of the Borla. On the other two cars, just having couple smaller holes did the job, making them sound aggressive, but on the milder side. Right now my CX-5 is not as loud as say the loudest corksport available for the CX5.

pro tip. take the exhaust pipe off and put few holes from the upper side on it. that way when you go to yearly check they wont be able to see it but you will have it permanently louder

Maybe use a bigger drill bit for better results, your BMW now sounds like a modified vacuum cleaner lol

I love them hot metal shards on my face when I'm drilling up like that

Here at the genius convention we use mini charcoal BBQs as mufflers and if you want louder exhaust just open the vents 🧠

Hey I think this is worth a shot I'm going to straight pipe it anyways and if I don't like it I can always just feel it back up

Rust works just as well if you have an older vehicle.

“we’re gonna be working on Lachlan’s beautiful bmw 330i, doesn’t have a single problem” *coughs* 😭😭

Even better when rust does it for you

it depends on how big the muffler is … for example on my Nissan I drilled like 18 holes but the muffler is huge and goes horizontally (unlike most) so it’s loud but it just sounds weird and not good

You got to drill some holes in the Cylinder. One hole per Cylinder gains +30hp. The more holes the more oxy to bang the more power. 20-25 holes per Cylinder is a good ratio.

Haha guy in the back eating cereal

pretty much did the same shit, I cut it halfway with a sawzall and then stopped cuz I hadda do some shit and then decided to strt the car and the shit sounded actually good. so i left it Lol

Or you can find where the exhaust is connected to the catalytic converter tube, then put a long enough bolt and nut in the middle leaving a wide gap between both joints and that is reversable, rather than filling the holes of ever needed

Did this to my stock 2015 5.0 f150 right before muffler with 3/8 bit. Did about 4 holes. Sounds sick af

I did this on my 1.8t jetta gli and it was amazing

Hahaha I was bored and just did this on my 325i.. 😂 nice

Haha I do this to my paddock bashers :)

I did this to my 2006 gmc seirra after watching this and it sounds great I used a ⅝ bit and I wanted it bigger so I hooked it out with a step bit and now it sounds awsome

Drilled holes in my 328i. Same spot. , made 7 holes , sounds pretty good , even though im getting a muffler delete

Now I want to just unbolt one of my mufflers, for science you know.

This was probably the. best yt tutorial ever we have the same car and everything ty!!!! and nice car.

I did this on my car untill my muffler delete kit come in, sounds good but there is a slight fluttering noise. Would drilling a few more hole resolve this so there is more space fro the exaust gasses to escape? I only drilled 4 holes on each pipe, mine is duel exaust, so 8 holes total about 3/8 in diameter

May as well, I’m getting my car straight piped after corona 🤷🏼‍♂️

How to create exhaust leaks 101

Wow, an exhaust leak is now a mod. Lol

Try drilling holes before the cat and see if you can't add a pressure relief valve tube setup safely 😂

I wish people would take my sarcasm that well 🤣

Dude that sounds like an M3 😂

I usually muffler delete my card ,sounds way better ,but drilling holes works too

You can loosen the bolts and put in some washers but in my case it came out to 10 miles per gallon😂😂😂

Two holes in my car just a few inches before muffler and it’s now kinda sluggish when accelerating.

Motor sounds rough at start dude.. might wanna check on that

Well done guys. Well Done 👍

Can you tell me if this will damage underneath the car at all thinking of giving it a go

This it just a blown exhaust!!

What size hole did you make?

gdamn fresh baby face rexy

Im doing a really wreird way to get more sound i removed the connwction to the black muffler and putting a pipe.there with holes

Is that a Walmart drill?

Oooorrrrrrr just do what I did just get a whole new exhaust system with a Spec D muffler and remove the silencer lol it'll sound better and guarantee my car is louder than what you guys did by drilling holes

This can also increase hp and help your car breathe a bit better. As long as your Cats good this won’t cause problems.

But dont you have to repair this so it can pass MOT?

Any affects for fuel economy? Because I want to drill in mine too.

Why it starts like this?

If you’re from uk I don’t recommend it as when you’ve to do the mot they may fail it cuz of that. And you’ll end spending money to replace it .

Cant do this in canada cause you can see exhaust fumes coming out from underneath the car in the cold winter :/

Thinking of doing this to my rental Camaro I got for a few days more fuck it

i cut a big square hole in the pipe using a angle grinder and it made no difference to sound

Telling to buy a metal drill bit lol

[SOUNDS, GREAT]👍

This is cool, but let’s say we wanna patch it up, how do we go about that?

Hows the exhaust holding up? No rust or problems that it caused? About to do this on my 528i , i have the money to buy one but i just want it little louder its not ferrari so not looking for performance. I will try today and up date see what happened !

so i gotta 1.8 sentra, trying to see what to do with my exhaust and i’m trying to keep a ricey theme lol. think this might be it

I have 2 audi the v8 and the 2.0lt with hole and it doesnt work on the 2.0l turbo. On the turbo car im curious to know if i lost power...bit the sound didnt change at alll. On the v8 the sound was already great and drilled one small hole in each pipe and i dis saw à 5 to 10% increase...not enough haha but i only have one point left on m'y licence for 2 year so im looking for à balance and it work...

Yup then u can just use an exhaust clamp if u don’t like

The fluke may be to add extra back pressure for more torque.

So one that can go through wood, Metal or PVC doesn't work? Will on e that can go through Steel beams work?

Camry Vids coming soon!!

So question! My altima has duel pipes. Would holes be drilled where the pipe is straight and splitting into dual pipes ( straight pipe, splits to duel pipes, muffler then the exhaust tips)? OR on both pipes of the dual on driver and passenger side pipes right before each pipes muffler?

I don't know anything about how cars work so if I say something stupid i'm sorry. wouldn't this create an exhaust leak and if it doesn't are there any other problems that can occur from this

For a size 3/8 do you recommend 4, 5 or 6 holes

Any droning when cruising?

how to not pass inspection lmao

Would it pass inspection? And if not is there any other way to make it loud?

Can I do this to my 2016 Mustang Eco boost

will this pass smog test in cali? i wanna do this to my 328i

I did it on my dads car it’s relly loud now hes mad

Wont get water in the hole?

So I just bondo/ jb weld the holes for inspections?! I’m so tempted

I once did this... my car sounded like a semi-truck on low revs but good on high revs, also got some free burble.

Will it still pass emissions?

I put metal fabric in mine the leaks aren't as bad

Thank you

Nice!!

Did it on my Silverado it works😂

Its much better to go with short straight pipe exiting under drivers door.

You should have just took your catalytic converters off and put it straight pipe

Got a 328 myself and did this, is there any chance of getting carbon poising with this?

can I do it on my impreza not writing ? will it work ?

Did it take a little bit to drill through it ?

Any engine lights or codes thrown?

Did you get a check engine light after doing this mod?

I just did that in my Toyota corolla AE90

I want to do that to my golf 4 is there any chance that I would get smoke or smells inside my car like back seats or front?

did this to my vw tiguan 2014 but i drilled the pipe before the muffler, and it left the fart can sound on revs but when you drive the car, it sounds like a super loud hissing sound that’s deafening lmao, i’m not happy and basically should’ve just not done anything. anyone who sees this don’t do this on a vw tiguan

Before : 2:58 After: 3:58

Just did it 😭😭

Should I try it on my 01 Camry

Hey man , is that mod can harm any part of the car?? , keep it up

Congratulations! Your BMW is officially riced out.

So you're purposely making exhaust leaks wtf

How come mine started leaking from the holes ?😭