I Straight Piped My Turbo Diesel Mercedes! Loud Turbo Spool & Weird Cold Starts

After installing a 3-inch catless downpipe on my Turbo Diesel E320 CDI Mercedes I had to hear it with no mufflers. In this video Matt from Driven Performance and myself, straight pipe the CDI and it sounds awesome and really weird at the same time. I never thought it would sound like this especially at cold start. Comment below what you guys think. Should I install AMG mufflers or leave it alone?
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[@LegitStreetCars]

What do you think? Sound good or not your thing?

[@cyrilmatthew2995]

which engine sounds better ..gas or diesel?

[@monsterram6617]

@@cyrilmatthew2995 It depends. My Cummins sounds like Bigfoot farting continuously into a trash can.

[@jamesofalltrades4359]

It’s better then stock but it sounds like something is loose. It’s a slight wobble noise I keep hearing

[@kash19840]

I had a 535d and did the same thing but in my opinion diesels sound horrible. There best left alone. Just do your power mods but dont expect them to sound good

[@offbeatkeyboardslayer9290]

u should make a 3.5 inch custom exhaust that would make it for all the turbo noises

[@KTM753]

Sounds just like a 5.9 Cummins at idle but sounds better under load. I dig it. Cool video.

[@Niko351]

Nah

[@greggnewton9781]

Nothing like a 5.9

[@thediddlefiddler5569]

wtf? It sounds NOTHING like a five9

[@liamollen3105]

If anything, it sounds closer to a 6.7

[@Ionel88]

A project on the audio side ?? An Improvement of the Harman Kardon System. I would really like to see something like that.

[@Dingodil_1]

Fix that metallic rattle.

Sure, transplant a gas engine. Otherwise, that's how a diesel sounds.

[@Dingodil_1]

@ It seems that you're deaf. Something is rattling, maybe heat shield.

It seems that you didn't read the big letters at 9:00.

[@nap8187]

Iñigo Zapata 4:58

Yeah, that's the rattle they fixed by 9:00.

[@TNBShooter360]

Sounds like a semi-truck 😂

[@lukeselby6576]

Diesel 😂

[@micheldionne5882]

TNBShooter360 yes like a two stroke Detroit Diesel!!!

[@CynicalBastard511]

Looks like Alex is in need for some Dollar Shave Club sponsoring.

[@adamreimus]

Never! Grow the beard!

[@Porsche996driver]

11:10 apparently this was the first MB with lane keep assist lol.

[@TonytheCarEnthusiast]

When you’re busy you learn to use the leg to steer

[@nknasi]

most diesels don't sound better unrestricted, imo. I don't hate it, i just think the same mod on any gasoline car would make more of a difference.

[@standyourground9973]

nknasi Agreed, however the performance gained from removing the restrictive parts is so worth it.

[@the74impala]

Do something about that red tint in the rear. Boost activate.

[@ANIME2020X]

Scotty Kilmer disapproves.

[@jetstream454]

😂

[@vladimirkalinov1181]

Yeah buddy! :)

[@manbiteslife3110]

Those were surprisingly reliable. We have a w211 at 700k miles atm still running

[@MBDieselFreak]

Definitely do a secondary solenoid operated bypass that goes through the mufflers! Makes cold starts and normal every day driving a little quieter. The high load, high rpm straight pipe sounds amazing.

[@rogerjeck685]

Kinda sounds like a medium duty truck. I'm all for the turbo whistle though. Is it possible to have healthy bit of whistle and quiet exhaust? Also, when is the silver car avail for purchase? enjoy your vids!!

[@jetstream454]

I'd say using a higher performance air filter would have a very noticeable difference.

[@reeewhydoihavetochangethese]

"this is just normal acceleration" meanwhile, out the back window, everyones disappearing with a quickness

[@kylemcweeny878]

Ahhh u beat me to it!

[@dieselgaint]

I'd say add a resonator from an e55 in the middle to take the harshness out the turbo whine. VGT turbos are a lot harsher whistle then a fixed vane turbo. Or the e63 mufflers which would allow more engine tone with damped turbo whistle. My 7.3 psd with a big turbo has a straight through resonator and muffler. Sounds good a the perfect amount of turbo noise.

[@ikkem8407]

Did you change your camera because the quality of the video seems way better. But the content as always is the best.

[@GIGABACHI]

VERY detailed paint job, cringey-fanatic motive but to each their own. SOUND: From the inside it sounds kinda Meh... BUT . . . from the outside at WOT it sounds AMAZING. I love Diesel and I've accepted it's "shortcomings".

[@Nikonfanboy1982]

My entire life I have always been a huge fan of loud exhaust. Till I bought a house and neighbors knew it was me coming home at 4 am lol so now I prefer a sleeper. I honestly don’t think straight pipes sound good but performance 1st. Does back pressure effect diesel as it does gas? I lost performance with my exhaust system believe it or not.

[@murraysaka6603]

It sounds awesome bro!!! Love hearing that turbo spool up.

[@clubsport9334]

That Bible Bashing Jesus freak truck tho....

[@abdelhameedalotaibi3657]

Would love to see you working on a w219 CLS one day .. its basically an E class with a different design ..

[@standyourground9973]

Abdelhameed Alotaibi That would be a sweet daily tbh

[@thekiller2995]

Sounds alot like my BMW actually!

[@leemurphy5253]

Yea sounds like a 330d straight pipe

[@wardyy8304]

Let’s see some footage of you going snow drifting! #chicagowinters .. Love your videos!

[@ja.935g67]

4:17 12:29 California wants to know your location! 🤣

[@monsterram6617]

Give it up, dude.

[@RealityIsTheNow]

Good for California. I remember that brown soup we used to breathe down here before they cleaned the place up.

[@2006gtobob]

Time to upgrade the fuel system now!

[@LegitStreetCars]

Oh yea! Turbo too, meth injection intercooler, and a bunch of other stuff. Can't wait!!

[@Creek_Hunter]

@@LegitStreetCars You might wanna check the Benz forums, there is a dude from Finland, Tuikku, iirc. He runs dual turbos on one of those. Some 600+HP....

[@ryanharte528]

Add some kind of mufflers. Dyno Max ultralflows or something. And any MPG gains in from removing the cat in the down pipe?

[@jaybudd1617]

What I liked back in the day talking in the 80's era the sound of the Mercedes diesel turbo sound. You could tell there was a Mercedes around instead of one of those G.M. diesel.

[@ja.935g67]

9:00 My video volume is over 95db, I hear the sirens coming!

[@AMomcilo1]

Sounds like the Audi R18 TDI LeMans race car. It actually sounds really nice, which I wasn't expecting.

[@chrisbarrett5132]

I think it sounds like an old truck pulling a heavy load up a hill. I like my 320CDI the way it is, quiet, really quick, and very discrete. Having a loud Merc is just so uncool.

[@muzinkosi668]

Ditto that man!!!

[@c4r5on88]

Amg are loud

[@manamanjonathan4295]

I really like that truck with beautiful painting of our Lord Jesus. About the straight pipe sounds freely.

[@nikidudev]

Finally! It sounds sick!! I’m happy you went for the catless and straight pipe. Really looking forward for the future progress on this E-Class!

[@criticaljim1]

Exhaust Mods are the wrong approach for this diesel engine. Try to get your hands on a 2014+ Mustang Sound Pipe. It is a pipe that attaches from the air intake and dumps the intake sound right into the pedal area of the cabin. It has a membrane in the middle and 2 foam mufflers, which are removable/adjustable to your liking. You can build a fitting onto your air intake and get right to that turbo sound. Result: As much Turbo Sound Inside as you like, Whisper Quiet Outside. kzbin.info/www/bejne/qpOtd596gJ2bqKM I might even try this mod for my stock M113 w163 and post a video.

[@dominikfocic5731]

Disaster... It sounds like a Golf Tdi from some young kid who doesn't have much money ,and has seen too many Fast and Furious movies... Really loud cheap sound. Try with AMG mufflers it should be better...less loud and more like a Merc is supposed to be...

[@dk9]

Hey! If doing this on a car with a converted bumper, what’s the best after market muffler/ exhaust system to use OR where should I look?

[@4DGeorge]

If you've never seen\heard of Classic Chambered Exhaust, look them up. Instead of just pure, open straight pipes, you could install one of their straight pipe power sticks and give your vehicle a very unique sound. www.classicchambered.com/classic/products.html

[@petarkresoja3481]

I have a w211 E220CDI and once a random idiot crashed me on the back on the highway, he broke my mufelers so i went and bought complete new e270cdi exaust but removed the catalitic converter bc it was dirty (2nd world fuel quality even my egr was cloged up) On startp for some reason it has very rich and deep sound, i quite like it, but now people think its a gasoline car, i dont have a clue how we came to it

[@Teo9497]

My e280 cdi sounds kind of better its 2007 3.0l v6 and its sound is 99% stock bcs the catalyster got some small holes and sounds better than this straight piped e320 on the inside

[@nicholasmaher9175]

Kind of sounds like a truck. Not all bad. Try some mufflers back there that are designed to be loud, it still won't be louder. Way back Thrush made "turbo"mufflers, they sounded really good on a 4cl or two of them on a V8, though not loud.

[@volvopentaman]

You need to get a W211 E420CDI to tune. Drove a few of those at the local car importer when they were new (among like all models from A150 to S65AMG). The STOP/START button on the 420CDI gearknob made me first think "whiat's this?" I knew that only V8/V12 versions had that. Then i checked the factory sticker. Did a couple drifts on dry asphalt by mistake . :D

[@ukwan]

Diesels are so popular in the UK they don't really get the love they deserve with enthusiasts, but I've had my fair share of Diesel cars and they're a really nice thing to have, V8 levels of torque with great fuel economy.

[@Lonnie91a]

The turbo sounds good but so diesel cars sound like dump trucks to me haha. I always expect some big industrial truck when I hear sounds like that. Not expecting a cool little Mercedes. I guess in Europe perceptions are different. My buddy had a diesel x5 that was super loud and it was just weird. I could never get used to it. Haha

[@petarkresoja3481]

I done this to a poor 220CDi and who is sitting in the back hears a really awful noise...In the front though you wont hear any, but i removed the catalitic converter...but it sounds impressive. Since i have nothing more to do i might put back in a new converter and redo the pipes correctly

[@fmswatchdo2373]

Exhaust sounds way better. On the other hand, the fleece liner will freeze to your paint, I know for a fact. Those straps ripped away in less than 30 days, that cover is a POS, I replaced with one from Pep Boys.

[@davidnjoroge8495]

if you wanna hear 👂 the turbo well,remove the plastic resonator downstream of turbo charger,and the other resinator after intercooler below the intake manifold,i have done this on mine and i can tell you the sound is sick,then modified swapped amg exhaust system,its sick sick sound.

[@bobihristov739]

I have straight piped my w210 OM 606. Sounds badass. If u want check it in my profile. BTW is this the straight six or v6?

[@tonyadams09]

I have one big question about deleting the catlatic converfer i have a 99 Porsche 911 just had engine gone through can i delete converter and mufflers safely or would i have to get it tuned whick I would like to do anyway if i can afford and find some place in my area of West Tennessee to have it possibly done

[@GAMESTERVISION]

God I love Mercedes.. I own a 2004 Cl500 5.0 V8. 302hp stock ain't had ya know? And it rides so fucking smooth. Once u own a Merc u forever know why they are so we'll known for quality.

[@oldscout2514]

I see people put bigger turbos on diesel trucks all the time. Can you put a bigger turbo on a Mercedes ? I had an older 300 SEL my wife didn't like it so l traded it. Do people hot rod these cars ?

[@biglovesam]

I bought a silver 05 cdi but was too scared too get it dirty so my mom drives it, then i bought another 05 cdi, then my friend and i flew to Washington to buy her an 05 cdi that needs a little work and she eventually sold it to me, I ended up buying a 06 cdi best codition ever until my girlfriend crashed the frontend. I hope to meet you this spring and track down some parts and share some tunes

[@parkerbenz]

My 1999 E300TD has no cats or muffler. I can barely hear the turbo on it, the CDI straight pipe sounds muchhh better.

[@manbiteslife3110]

Would it be retarded to do that to my E220 w211? The DPF is just causing problems at this point putting the car into limp mode. I just want to ditch it all together

[@imre9729]

I straight piped my 2007 E280 CDI if you want you can see it on my channel. I love the sound btw, can't wait for new mods!

[@teem5642]

Tbh all diesels iv had with straight pipes and cats removed dont sound anywhere near nice. The turbo sounds uncontrolled too and that vacuum sound just horrible imo. Just a question though, can a good looking fart can or booster help enhance the bass of the engine?

[@brianx1808]

I don't know, i know we are not going to get the crackle and burp of some newer Mercedes..it sounds like something is rattling but definitely like the turbo sound. Also what about emissions, don't want to be riding dirty.

[@ToolsOutsideTheBox]

Personally I don't like the sound. I think it needs SOME kind of muffler/resonator, even if you get flow through style.

[@PeTze955]

you maybe want to check out Black Smoke Racing, they have used 320cdi engine on their drifter that sounds awesome :)

[@TheBlake57]

Sounds like a small piston Cummins. All you need is a engine break LOL. I like it need to go 3 inch. All the way back though.

[@Jays2Lazy]

Hey alex i have an 83 300sd i just dropped the muffler and am running a 2 ft cut pipe lmao should i put an axhaust kit on it? Im not good with diesel

[@gregorythoman8281]

Why? It is a Mercedes. I don't get why you want to make it noisy. I have watched a bunch of these videos and still do not understand why you are so interested in high performance. My second question is why do you screw around with diesels? Waste of time as far as I am concerned.

[@fozpringle1]

Alex if you havnt already check out sk8215 twin charged e55 project with a manual conversion

[@hondatrix]

Alex, the exhaust will only increase the turbo sound a little...it's way too long and the sound waves can't reach the rear intact. Open the air intake and you will hear what you want to hear...

[@FCT8306onTwoWheels]

Its a straight six, turbo diesel. Thats super rad, exhaust note reminds me of those JDM Supra and Skylines with exhausts but this is a diesel. Diesels can take it

[@Carstuff111]

Um, that does not sound anything like stock lol. It sounds like a modded Dodge truck with a Cummins. Not saying that is a bad thing, I dig the sound, but it does make it sound more like a truck inside and out.

[@brandonmarhal289]

"so let's fire it up and see what a straight pipe cdi diesel sounds like..." "...With Wix you can create a stunning website!"

[@nirfz]

The V6 320 CDI has something to reduce turbo noise he points at it at 21:57 and you can see it better at 22:18 kzbin.info/www/bejne/l2fWgJmde75jesU maybe to straight 6 has something like that too...

[@Blasterxp]

Raw diesel engines.... Do you really like the sound? I dont. Buy a tractor lol. Those cars are made to be silent, with a lot of sound isolation.

[@_Everyone__]

Stupid idea, still sounds like a diesel... with the E55 I get it, but not this crap.... and I have owned them both and know the real sound

[@DeusVolo]

@11:58 Mercedes Benz has a rose colored rear windshield. Why, because all Mercedes Benz owners look in the rear view mirror of life thru rose colored glass.

[@805gregg]

They figured when you removed the muffler on a ford diesel truck you would gain 1.5 hp, what is the point?

[@StephenJohnson-jb7xe]

To be honest I think it sounds pretty awful although the drive by with a more open throttle sounded better. By the way do your windows have an amber tint or was that some camera trickery?

[@imbadatcod7208]

did you just cut off your catalytic converter? You know that they are there for a reason, to reduce toxic gases and pollutants in exhaust gas..

[@tmanepic]

Still nowhere near Audi's 3.0 TDI with an exhaust kzbin.info/www/bejne/r5TEoIN5pt6Dnrs

[@xxmeanyheadxx]

lol i wish i could get the primary cats off my v10 tdi she would sing but man they are hard to reach

[@alimvinca2998]

Sounds identical to a cummins. Sounds like a baby version, but it should sound like that all inline 6 turbo diesels sound the same.

[@kylemcweeny878]

This is just normal acceleration.... cars behind him turn into ants and then dissappear completely lol

[@anthonyg6038]

I love your videos. And not hating. Its constructive criticism. Doesnt sound good. Sorry.

[@JM-cg3ps]

How is that green Jeep Wrangler doing the "CAR DESTROYER" bought?

[@Hoodean]

Nope. Sounds like crap. Put some mufflers on and open the intake for turbo sounds, this car should be quietly fast

[@FixItYerself]

Sounds aweful. Lol.definitely different tho. It would be funny if it were silent until you took off from a light and heard the ruckus of that beast

[@NGAAutoTV]

Another great video Alex!

[@rasheedsettri3915]

Try straight pipe the OM646 4 cilinder CDI. Sounds way too loud

[@AaronbTV]

Thank God your not in California

[@user-nj2wk2ec2b]

The black CDI sounds like a really shitty lawn mower. Simply terrible.

[@cliftonw1365]

Not much turbo sound. And it really doesn’t sound like a diesel going down the road. :(

[@kristofermcdonal7504]

Nice one 👍

[@z3hma52]

Yo can you make a vid that you make a straight pipe for a e270cdi w211

[@stoatrepublic]

My 2002 S320cdi is straight piped and sounds purrfect, lol...

[@southerndiy1]

It’s got a bit of Detroit 71 series rasp (but quieter of course). Love it - I think I want one

[@SpagettyCraft]

Wait til you hear the 270cdi. Sounds even better.

[@zl1le104]

If you want an even louder turbo get a cold air intake. And if you want some boost in power (not much), get a custom intercooler which will keep the turbo cooler.

[@jimhopper2246]

Is there any way u can tune it to add fuel? That is where your power is hiding... Sounds best straight piped btw

[@vainoteppo8815]

Jim Hopper u mean rolling coal?

[@glennfulmer3602]

Do you have a video or any information on deleting the turbo silencers/muffler?

[@FinTra_]

hi I am looking intona car with om642 engine R280. How good are those engines?

[@phil955i]

You can actually hear that it's a six cylinder now, which you can't with the stock exhaust. One of the things I didn't like about my E320CDI when I had it. Sounds great, keep it that way. Putting mufflers on will only return it to somewhere near stock again IMO.

[@ashishpatel350]

*commie-fornia would like to know your location*

[@adriatys439]

Does anybody know how straight piped 220 cdi w211 sounds like?

[@Iamhaxal]

The rattling sound sounds like my e270 👀😅🤦‍♂️

[@shawnhatfield6579]

This is awesome! If you want more turbo whistle give it an open air intake with the straight pipe. I’ve had a couple of ford power strokes and this set up will whistle! Great job. Loving the videos!

[@CarlWurzer]

Hi, when the cat was removed did the tune remove the check engine light, thanks

[@invertedpolarity6890]

Sounds terrible. Like a wheezing, emphysema patient.