Taking My Modded BMW E90 328i to the Dyno! | The Truth About Adding Performance Mods to the N52... 

I’ve seen people get 250whp out of N52, switch over to Stage FP, Bob is a legend for the N52 engine, active autowerke is a thing of the past

I have a lot of experience modifying the N52 engine for more power. A few thoughts, auto cars usually want more tq and power lower in the powerband compared to manual cars which will Rev higher and can have power further up in the powerband. You don't want backpressure in the exhaust. Your muffler delete will make no difference as you still have 4 catalytic converters in place. CA and legality and yearly inspections. That's also a tough one.

Bought a 328i RWD 6MT with BMW genuine exhaust and intke, deleted the carbon filter and silencer. It revs to redline and puts a smile on my face all day long 😎😎😎 installed m3 control arm, about to order Bilstein b14 coilovers, TRACK READY

I love my 328 I went in knowing it wasn’t “fast”, still love it and it’s fun to drive especially since it’s an e93

328 is a really nice, low maintenance daily, that makes adequate power. If you want to go fast buy a second car... put miles on the 328 there's plenty of them for a decent price. Finding a really clean well maintained n54 car is harder to do therefore you don't want to load up the miles on it,. With that said I love my 335 lol The torque is intoxicating.

I love my e92 328xi, it's still quick , all stock keep up the good work as always tho

You have the literal best colour possible for a bmw hands down. I don’t care what others say but I would simp for that bmw anyday of the week.. well done for the progress

Dude we all know we will never have the same power but our cars still has plenty power , sounds awesome , drives awesome i love my 323i . Don't care still plenty of awesomeness lol

I love my 328i E92 as well is fast enough for me, and very fun to drive.

I wanted the better reliability of an N52, something more capable than an N52 and something built better (OEM) than a 3 series so I went with my 2014 535i M-Sport and I love her, been on 3 road trips, one being from NC to ME and back. Its quick when I need it to be and is comfortable enough to commute to work every day. Getting ready to install a BMS Intake, a VRSF charge pipe and do a stage 1 tune on it to get more out of it. Love my Bimmer and I may be slightly crazy to be beating on it like I am, but I drive cars, I don't sit on em lol

Interesting that's all that went to the wheel. Got to think at the crank you're running about 235(ish) and you lost 46hp (20%) through the drivetrain. Mmm... something just seems off to me, I may be completely wrong, but I never seen that much % loss in my days of tuning Japanese imports. Guessing the AWD is the culprit? Love the videos tho, you've inspired me to upgrade my recently inherited e90.

Do you’re missing, Coil pack upgrade. There’s a IAT sensor relocate upgrade that goes well with the intake system. And a Pedal tuner from BMS

That car is sick appearance wise but damn power wise, I could never buy one, that’s why I did hella research before buying a bmw, n I saw too many video as on 335i and what they’re capable of , now I have an e90 335i with around 460 whp, over 500 to the crank.

The N52 cannot be turbocharged or supercharged because of the magnesium aluminum mix. The car like clean though, so good job

I love my e90 3.0D stage1,no smoke no power :D

There’s an issue going on here. Either their dyno reads very low or the tune is not good.. also could be that the valves on the manifold aren’t working but I haven’t looked through other videos yet to see if you put new ones in. A custom tuned N52 with just 3 stage will do conservatively 265hp at the crank. While this car is xdrive and automatic, there’s simply no way you would have a 32% drivetrain power loss from the engine making 265hp to the wheels reading 180whp.. The N52 is a great platform to mod and has good room to make power being NA, however I’m unsure how the AA tune or dyno are holding up in this example. Plenty of people with the same setup online making more power than this car did.

Honestly you got rid of the muffler so you do lose back pressure. I plan on leaving mine, I did the 3 stage intake manifold upgrade, a silicone intake boot and tuned my 328 with the bimmerlabs tune so I should be at 260 hp. May wanna dyno it but I doubt my car would be making low numbers.

Love ur build. I love my 528I Xdrive. Hoping to start working on my exhaust soon.

My 325i e92 2006 has 218hp STOCK (N52B25AF). Are there still some downgrades on American Market? I don't understand how you only got 180hp with mods with the 328i.

Headers with the stage 3 tune would of brought your numbers up

bro i ain’t gon lie my shit pull hard asf from a start. i always best people off the junk but they catch up in higher gears

I have an 09 328i 6spd manual rwd with the sport package and its quick and I love it. Less things to go wrong with it than a 335 and very fun to drive. Makes my 08 IS250 boring but I got a soft spot for that car too. Every girl I take out in the cars love the Lexus for the looks and BMW for the quality,comfort, and the cupholders in the dash.lol

You should install AA headers that should give it an additional +20 whp

Yeahhh something is off bro. My friends stock n52 dyno'd 188hp and 171tq. My fbo n51 dyno'd 218 hp 200 tq without nitrous and 294 hp 267 tq with nitrous

I don't see a lot of people doing anything with an e60 530i, but that's my daily and I know I wont get a lot out of it but if I could N/A I want to try to squeeze 239 to the wheels out of it. right now just calculating stock number it should be around 209 to the rear wheel.

Yo why don’t you try xDelete it can change your car to rear wheel drive just a suggestion I did it to my car

My 525i e60 after the 3im, bimmerlabs tune, silicone intake boot/cai my intake diameter is 3.5 until the throttle body it's 3.25, primary cats still on rest straight pipe. X pipe to y pipe to single chamber muffler. Haven't dyno'd it but from 215hp it Mos Def around 250-270hp tops. Be taking gs,zs,chargers out.

You need to dyno again at a proper reputable place and have check the three stage manifold,maybe it isn’t working well.

Did the upgrades make it slower?

I’ve got a 328i with the sulev engine. Does it really have the 330i intake manifold??? Do I really only need a tune to take advantage of the intake manifold?

well at least you're honest

I have the mppk power kit ecu flash and rwd and im very happy with my car but it is a 2011 lci and i was told that was the first year that bmw flash the ecu that is what i was told not sure about that my is totally stock just a k &n. Air filter truly think you can get more out your car..with better temps..

Less headaches with a supercharged N52 vs N54. Also you didn’t have headers

Keep up the good work

Should of put headers on it

The dyno has to be off! With those mods you should be making around 210whp+. My cousin has a 328i with only a silicone intake boot and a JB4 power box tune and he made 201whp on dyno. I have just about the same mods as you currently but I haven’t been on a dyno yet

brotha, I love your car

Great video! Now Makes me wonder if I should do these mods on my 328 e92

Looks like you maybe figured out one of the basic principles of modifying a motor for more power, which is everything is part of a system, and has to be treated as such when doing mods. Look at it like this, if you have three 4-foot long sections of pipe to build a pipeline, but while they are all the same length, one piece of pipe is 2" in diameter, one is 3" in diameter, and one is 5" in diameter. No matter what order you put them together in, the pipeline will only flow as much as the 2" diameter pipe can handle with the pressure pushing the air or liquid remaining constant. What you have done so far is build this imaginary pipeline and you put the 5" inch piece of pipe in the middle and the smaller diameter stuff on each end. If you want more horsepower you need to replace the 2" and 3" inch diameter pieces with 5" inch diameter piping that matches the middle to eliminate restrictions, and make it as short and straight as possible to maximize efficiency. Even then, you might not be seeing the full power the new intake and exhaust are capable of making if the engine is now having to artificially restrict the air it allows into the throttle body. This is because it cant get enough fuel for the proper mixture of air to fuel and will run lean if it doesn't cut off some of the air coming in. Now you have to turn attention to the fuel pump(s), injectors, and possibly the fuel lines and fuel rail. Even after you remedy this problem, sooner or later you will run into the problem of running out of displacement and/or RPM speed (sooner rather than later in this particular case). Once you have gotten to the point where the amount of air and fuel available to the engine is as much as it can take being naturally aspirated, and the engine is spinning as fast as it can without coming apart, the only way to generate more power is to increase displacement and/or compression, increase the maximum RPM's it can handle, or physically force more air and fuel into the combustion chambers with a supercharger or turbo system. It's definitely going down a rabbit hole that is expensive, but it sure is a lot of fun IMO.

Hi I have a 2007 328i 3.0l i6 is this car a n52 or n53 I can't figure it out it's a 4 door sedan manufactured in Germany

Back pressure is a myth on 4 strokes

Bro My e60 528lci passport stock(234hp) but on Dynamometer (261whp) , i tuned my Bimm) i got 313-whp on 95 octane ,333whp (100octane) (Autowerke ECU , AutoWerke headers , Aluminum Disa 3st Manifold, Afe Double cold air , Double AT radiators down in my front bumper(M5 stock bumper) ,530(n53)535(n54),X6(n55),n57,545,550 Sucks))))))

i thought these have 230 stock? i have 2011 6 speed 328i

x drive and automatic? That must have been expensive when you bought it. Like 335i price. At least 48,000

Headlights link ?

is your car undertuned or something? Thats barely above factory hp and positive american models come downtuned before the posted stock hp

My N52 330i is pushing 291HP... I don't know what you're doing wrong, fam

🔥🔥🔥🔥

Xdelete bro! turn that to RWD

dawg your engine stock is supposed to make like 230-wheel hp you lost hella power

It made less power that what it does from the factory those numbers have to be wrong

What’s the best tune for a stock n52?

189 hp? wow

Confused on y there’s music over a car video where we want to hear it deff a thumbs down

I have n52 325i would this tune work for me?

Did you get the double exhaust custom, or did you get from a vendor!

u need xhp stage 3

Nah my life is a lie how is this possible

CHECK MY CHANNEL IF YOU WANT N52 CONTENT ALSO!!! My 330i made 242 on and awd dyno, mine is rwd also with 215,000 miles but idk why yours was so low my guy. Don’t be upset it could also be the dyno as well, I ran mine in December in an enclosed cool environment so your car probably heat soaked and wasn’t making any power. The true duals don’t add power also and back pressure doesn’t have much to do with however running the dual into a straight before or around trans is where you can get most of the power

so when you getting a 335?

Just boost it

My brother made 268 with his

Hey i had the same thing with mine its because the usa version has a restrictor in it. If you take out plastics at top of engine bay there is a fuse box hidden with a few relays there is a ten amp fuse that if you just pull it shuts down your restrictor. Otherwise nomatter what you add you will get restricted to 185hp.

Ok, that is a surprise. Stock my 125i (euro spec) has 215hp. Same engine block as the 130i and Z4 which both pump out about 265 - 269 hp standard. With a tune on my ecu I can bump my 215hp stock to about 270 without any other upgrades. Euro spec does have the 3 stage intake manifold as standard though. Plus my full exhaust is upgraded from headers to back box. Once tuned I expect to reach into the 290hp range.

I'm looking at the 2010 through 2012 e91 wagon which is the n52. Will be a cool car to mod some and daily. I prefer the port injection and normally aspirated inline 6. They have their benefits and sound.

Try another Dyno to compare the results but you might be right that you lose power to the 4x4 😂 and the weather.

Love the 328i I just modded new wheels, bumper, exhaust, lights, not trynna do too much since power isn't there still got an F30 so there's that

I got a 328i e93 for the reliability. The 335i is fun and all but its one of the worst bmws in terms of reliability. The high pressure fuel pump and injectors along with the infamous waste gate rattle on those cars is enough to make anybodys wallet cry. Turbos aint cheap. And on that note, what tune should i use for my N51. Send a link?

Uhh no. I bought a 328i xdrive because I wanted a reliable NA inline 6, a fairly light awd sedan, and something that looked good between $15-25k. I had a MK7 GTI before and yes it’s way more tuneable but was definitely less reliable. I had no issues with it as I totaled it with 25k miles on it ): Got 26k from insurance and got the bimmer for $17k after tax/fees. 35k miles on it (during the crazy used car market). It wasn’t great for harsh NE Wisconsin winters. The 328i seemed like the smartest choice. I’m not trying to go fast anymore as I have other priorities financially. I can just get coilovers, wheels and exhaust along with other cosmetic mods and be happy. A 335i would be dope but I don’t want to rely on something so unreliable for getting to work or the ski resort. My complaints are the shitty infotainment that feels more than 12 years outdated and the fact that my back seats don’t fold down. I wish I had the snow package.

I have dyno'd my 2010 328XI and the readings with 19" BMW stock wheels from another model BMW where 248HP but your readings are way off. I have no engine or tuning mods installed. BMW normally understate there horsepower readings so I truly believe apart from your rims, you are having some engine losses.

Is your steering heavy Sir ? Someone please help I just got a bmw I’m new to the community

I have 3 stage intake manifold whit an AA tune making 252 wheel horsepower from my 325i 2.5 block

I was wondering if you ever thought of installing "Eisenmann Sport Exhaust with Quad 70mm Tips - E90/E91 325i/328i/xi"? Technically this should not give the engine any back pressure as it is an improvement on the existing 328ix single exit exhaust to a quad design. At the same time it retains the integrity of the muffler without having to delete it. Please let me know your thoughts!

HOW DID IT LOSE 40HP?! Can someone explain why it was that drastic??

Ess supercharger $3500 300 400 extra for tune n54 335i valvetronix rear exhaust you'll be around $400 to 405 🎉🎉🎉

So it’s slower than N20?

Stock 328i rear at 215 bhp

Automatic! Are you serious wtf nice car but eventually you need to become a man and learn clutch!!!!

There is 1 more upgrade you need, and that is the wheels, trust me. Light weight forge form wheels. Stocks can average 22+lbs. when you find this (1”=1lb) you’ll get that feels you thought you lost. I didn’t share much with the names of the suppliers. But you’ll find it without a doubt! I have a 2011 328xi n51. They are Ultimate Driving vehicles.. you just keep on peeling off the limp layers

I Daily a N51 328xi n love it. One year n it's still going! Some gaskets r due tho

N51 & N52 gang thebest engine for daily drive . I have N51b30 and added : -3 stage manifold n52b30 from 3.0Si (E92 EU cupe 272 hp) - waiting for sport exhaust manifolds - looking for good rear muffler . Also i check my car on dyno shows 234.5 hp and 278 Nm .

What is your mpg with these mods, some of us care. 😉

I want see u turbo this u need to upgrade the internals may u be first turbo n52 not blow the engine

But still love all you do it inspires us !!!

for next year i’ve been install VT+ and Gain my 333whp to 400+

Im seeing alot of people mistaking crank hp for wheel hp.

Those pipes don't look mandrel bend? I'd also want them both to be the same length. Love the exterior look

Sounds like the Dyno is a bit stingy

I was wondering if you actually felt a difference in the upgrade because I wanted to do this mods on my xdrive 328i but I heard that you can lose horsepower because the all wheel drive has different gear ratios

Sorry bro, that is pretty weak. You should sell it and start a new 335i build.

Can you do a 0-60

Do you have headers?