My Fully Built BOSS500 B8 Audi A4 

Looks like a made some new 'friends' with my little joke about a4 vs. s4! Please understand this was meant to be a playful joke - I'm a big fan of the 3.0 s4. And honestly it's a better car in every possible way, no way around it. Hopefully we can still joke with each other without taking things so seriously (no I'm definitely not rich, or pretending to be). Thank you to my close friends with S4s for being good sports and not hating me 😂

Being newer in this community I was surprised to find the lack of documented content for builds at this level. Thank you for trailblazing this and documenting it so well. Congrats!

I might be one of those 's4 owners' - but have really enjoyed this series - very well done and can't wait to see what's next

Watching this car being built has further inspired me to start building my B8. Amazing series, great content, wonderfully made. Much love from California A4 B8🤝

couldn’t have said it better myself when you said “the b8 a4 community is bigger than i thought.... go online and search audi vlog, there is none” thank you! please keep the progress, loooking forward to season 2!!!!

You can easily be a movie director/producer with these quality videos, keep up the amazing work man and thanks for the videos.

As a BMW guy who just stumbled upon this video, I appreciate the amazing edit and great personality. And I’m not gonna lie, the car looks great :)

Dope build. Upgraded to a B8.5 S4 - Came from a B8 A4 and never got to building it like you did because of fueling with big turbo setups. I just didn't want to dive too deep. Makes me happy to see people doing what I at one point envisioned the car to be. - Wisconsin Repping Strong

I love you dude. I have a 2010 a4 avant and I’m building the engine and am doing exactly what you did for your project. I love having something to guide. You were right it was frightening looking online and seeing no one doing what you want to do. Thank you for being the boost of motivation I needed for this car build. I love you dude. Never stop 💕

Listen to that beast come to life 😍 so happy to hear it running and see how far you've come congrats!!

This is great man. Huge props to you for both documenting and "completing" this build. Due to the pandemic, I don't make it into Madison much anymore, but I hope to see it around Wisconsin. Congrats!

ECS turned my 2 day A4 project into 4 months this summer... I felt your pain the whole build. Thanks for pushing the A4 community further. I am hoping in a year or two big turbo builds will be much more common with a lot of the weak links sorted out.

Looks weirdly savage cruising with no bonnet (hood).

Hello. B8 A4 MT. I've had it for 5 years. Love it. Intake+BOV.

I actually happened to just stumble upon this. But this has been such a binge worthy series. I agree with some of the other commenters, there just isn’t any documentation like this out there for the Audi platform. What separates you from others is how you give us such an amazing cinematic experience, from the music to the intro shots. I felt so invested in this, emotionally, watching it all and felt your pain, felt your relief and felt your happiness when it started back up. You deserve nothing less than a standing ovation. 👏🏼👏🏼👏🏼👏🏼

Great build! I've been considering adding more power to my 2014 A4 allroad however, it's the daily family ride so I've hesitated. It's got over 95k and has had zero issues. I'm currently living vicariously through your videos....Thanks!

Bro, this might sound corny but I gotta tell you this... I subscribed less than a minute into your first video on this build. I could tell you just knew your stuff. It means a lot to all of us that you’re sharing these amazing videos and your knowledge to help us know what to and what not to do. Otherwise, it would potentially be an expensive lesson for many of us. One thing I want to know is how happy are you with the IE intake manifold. I’m thinking about getting one and want to know if you can feel the difference over stock? Sorry for the long-windedness.

Awesome for doing a lot of these mods yourself...you have taken it beyond my confidence level and for that I applaud you!

She's a beauty mate can't wait till it's finished

I want to say thank you so much for this series. I've had a bone stock 2013 A4 for a couple years now and I have wanted to upgrade it. Thank you for the inspiration 🙏

Just got my A4 back in October and have been trying to jump into all the communities available for Audi and I've loved it so far. Definitely got a subscriber out of me btw! Wisconsin native currently in SC for the military

stage3 S4 b8 here and I love to see others on the same platform with diff engine just doin there thing, Mine is sleeping right now , cuz a 500hp+ car with coilover isnt all that great during winter in my remote area.

As a b8.5 s4 owner ill say that joke was hilarious. Love the build man and thanks for pushing the envelope for audi enthusiasts!

You have to explain the tuning process. Like what did it take to work with UM? Fueling stuff. Things to watch out for... ect. I plan on going with the boss 600 myself. My motor is built. Currently I'm APR map with an HPA k04. CTS kit was not out at the time i started the project. A lot of people jumped off the B8 A4/A5 platform when APR stopped development on their EFR kit. I'm glad to see that we have options again. Also i went with the A4 over the S4 for the some reasons. Keep up the good work! Thank you for not making is look easy like so many RU-vidrs do.

From another black B8 A4 owner, I love seeing this content. Currently running APR stage 2 with a few other goodies. Nothing to this extent but hopefully one day. Your an inspiration to others. Keep up the good work!

I don't know how I haven't came across this yet. B8.5 A4 6 speed. Keep making videos please

I just put the IE stage 2 on my mostly stock 2014 A4... It was a tremendous improvement. I'd love to do what you did to mine! I also have a B5 A4 with a Boost Dynamic stage 2, will soon be a K04. Another car I'd love to build and big turbo. Neither of which will probably happen. My kids are expensive enough! Glad you got her going and that it really was worth it! Can't wait to see numbers! Enjoy it... That's what car are for! And thank you for documenting the journey.

Fascinated by the outcome on this. Here in the UK we seem to be restricted to stage 1 only maps now (pre baked). Ofc still got full custom options. Respect to the tenacity shown. 💪👏

The production quality on these episodes is truly mind-blowing. Seems like a TV series to me. This community needs more love, great build, can't wait to see where it takes you! (I've previously had a B8 A5 and am now in a B8 S4, seeing this series makes me miss all the whooshy noises)

Awesome work man. I own a 2015 A5 s-line that’s full bolt ons and tuned on a custom 94 tune. Your car is super impressive and I can’t wait to see how you progress even more. Keep it up man!

TOTALLY WORTH IT, LOVE THE BUILD!! It’s like you said there’s isn’t much content out there regarding the b8/b8.5 A4/A5 community, you’re starting something great. Keep on keeping on!

So happy to see it running! Been following along for a while now. Definitely would love to see more with the builds! Love the “S” dig too ;) keep it up

This is where I'm at with my 2008 audi a4 2.0t FSI 6 spd gtx3076r gen 2 superteck valve train boostline rods je custom pistons elring gasket kit all acl calico coated bearings and hopefully oil screens all removed break in coming soon. Thank you flink films

Sick build. Im a B8.5 owner myself. My local shop quoted me 15k for the boss 500 and that didnt even include boring and rebuilding the block with new internals. Couldve bought a new S4 for the difference in pricing of the big turbo. Im satisfied with my k04 with APR tuning. Next time Im going S3 with a supercharger, sub 10 sec with bolt on supercharger.

You are the best most under rated youtuber I know literally you have just inspired my whole 2014 Audi A4 build because I want to do the exact same thing

Absolutely love this serious been following and loving the series

Incredible video still one of the few people to make good Audi content in general I hope to see more of this build!

Love the car and your journey! No need to throw shade at us S4 owners though. There are plenty of smart reasons to go that route. I had a MK7 GTi and when I thought about its future and upgrade potential, I decided to move to the S4. Big turbo is fun, but this is my daily at the end of the day. I switched to the S4 instead of large turbo for many reasons, reliability of the EA837 over the EA888 being chief among them. I have a friend with a STOCK B8 A4 and guess who just picked up last month from the shop after a full rebuild... I know that the EA888 is a slightly different motor that his and yours, but they’re variations of the same design. At the end of the day they have had issues with reliability and continue to do so. Now I can also get a 500-600hp monster but don’t need to crack the block to do it, and I have instant acceleration, the exhaust note of a six and supercharger whine for days. Also a car with a better start point suspension wise (extra body welds aren’t practical to replicate), as well as interior. Maybe bolting on a pair of pulleys, swapping a heat exchanger and test pipes in isn’t the same challenge as a full rebuild, but I’m not sure it makes it a lesser car. The 3.0tfsi is just a better base IMO. Considering people have examples pushing well into the 600hp range on stock blocks still and only NOW nearing the 700hp range are people having to turn to the internals to keep progressing the platform. For a tuner motor to be around fifteen years old and various examples of street prepped cars running tens and there still being no OTS kits for the valve train or block shows you how stout they are. So it’s not just a money saver, it’s also a headache and time saver. Truth is, there is value in having that level of power in a way that BARELY affects reliability... well into the 600hp range. Second, I don’t care how much you frame it as personality, saving cash means more or better parts at each upgrade. So less headache and more potential, and cheaper to do it while maintaining a higher quality in various areas from the start point. I just call that being efficient with my resources and time. Again this isn’t to put you or your build down. It’s cool as hell and I congratulate you on it. Just don’t be too smug about it. At the end of the day everybody has their reasons to do what they do and no way is the right way. We both love our cars, and they’re both great in their own rights. I’m glad you pushed the envelope, and I lay my hat at the feet of trailblazers like you on the s4 side, because someone has too. The car world needs envelope pushers, just keep it humble and remember we’re all here for the same reasons. Edit: I understand it was just a joke but real talk there are only going to more of our folks facing this decision as these cars come down in price, and frankly for those with a tighter budget and time constrictions I actually think there is merit is starting with the more expensive car ironically.

you built almost the same as i built. except im putting in the BOSS650.I went with JE Ultra pistons 83MM so i had it bored 50mm bigger. i also went with rifled rods and racing bearings. i also switced to IE software from APR. i got rid of the mid muffler and put in a straight pipe so with that replaced its pretty loud but very throaty and it makes such a nice crackle sound. People think i have a V6 or V8 under the hood, yyou did really good on your build. The only thing I did was when i put my cylinder head on I used the cooper sealant spray and believe me i made mistakes the first time. I blew a head gasket and had to tear it back down. So thats why i ended up building it for racing. I'm also getting ready to put meth injection in the next week or so. So i will be looking fr more of your videos. I ended up getting my ARP studs from the UK cause there were none in the states.

All the searches I've done for the b8 a4 on RU-vid Idk how your vids slipped through but I'm starting at the beginning. Just wanna say love what you've done with the car and that stance...perfection! Looking forward to seeing the progress and subscribed for hopeful future updates. I'm sure like every upgrade so far my ko4 install will leave me wanting more. When asked why I continue to dump money in my car the answer is simple. I love seeing the look on their face when I tell them it's just an A4 lol Its also what I could reasonably and responsibly afford at the time. Thanks for sharing your videos and experience.

Spool noises are music to my ears

I had the same aluminum manifold installed on my 2012 B4 Avant. As Integrated Engineering mentions, there is virtually no turbo lag. This car just keeps on pulling.

You are honestly the best person and i'm kinda sad I didn't find you until just now. Thank you for being the guinea pig. I've got the oil burn issue that's painfully common with these cars and am torn between going the route you've gone and trading up. Seeing you though.... and what I truly want, I think this is the route I'm going. Would be a huge help if you had a parts list lmfao thanks again dude!

Congrats on the project completion. I have really enjoyed watching this build series, particularly your honesty throughout. As DIY garage builders, mistakes are inevitable and it's important to learn from them while also not trying to break all your toys and call it quits. I can't imagine the mental toll it would take on me removing the engine 3 times! Also, great cinematography, it's clear that is a passion of yours as well. Keep up the good work!

I love my B8, it has its flaws (like the bad front bushings and steering wheel noise) but these cars are going to be a hot ticket item with tuners soon.

I've got a full bolt on SQ5 that makes roughly 550 wheel on race fuel. and this is so much cooler to me. great job with the build. You make me wanna get an A4!!! you just got another subscriber.

Subscribed. A big turbo build in a format that reminds me of Petrolicious and doesn’t have those annoying “WELCOME TO MY CHANNEL” intros? Hell yeah bro. Keep it up.

A6 owner here and love seeing the base models get some love! Great series!

As a B8 A4 Avant owner, I just wanna say great job and thanks for being a guinea pig! Keep it up bro!

Great series so far, love to see focus on handling and breaking updates as we know the engines potential is huge, look forward to the next one, UK fan 😎

Thank you for making these videos. I have a b8.5 A5 and I’ve been doing a ton of mods to it. You’ve definitely inspired some of them. Keep up the good work man :)

A round of aplause for you!! And you inspire me to get a A4b8! I have a GTI MK6 on f23t Turbo!! And I was planning to get a GTX28 on it!! However AUDI A4 looks amazing, clean and classy!! So I might sell my GTI and get an AUDI A4!!

Ayyy I’m in Wisconsin too! I’m looking into making my b8 wagon faster, thanks for all the help man! I would really like to talk with you and pick your brain for ideas.

Looks and sounds great! Love the content, Ann looking forward for more on this a4. Planning on buying a project car and have it down to 3, with an a4 most likely being the one. Great job, and thanks for all the great content!

happy for you bro! hopefully my oil consumption rebuild and k04 install is done this week 🤞🏾

Great video and series, happy to see A4 content out here. I just purchased all the ingredients for stage 2, now to get them on this winter. thanks for the content.

Was so hyped to see this. The build looks so excellent man, inspiring for sure. Stoked to see more B8 content.

Absolutely continue this series! By far the best thing I've watched on RU-vid in years. #BaggedB8/8.5Gang

I loved the box humor 😂 very cool to see you catching your dreams on this thing. Also, portable garage heater! They're under $100 and work decent if you need to get stuff done in the garage in winter and don't have built in heat. Would be good to get small stuff done here and there. Looking forward to seeing what comes next! Also would love to see the car in person hopefully next year.

This car has way more personaliy than an S4. I like it and i like your attitude with it all. Good job mate

that's a good looking B8 A4 man, the power must be really nice and can't wait to see your HP numbers. I have the B9 and I'm comfortably putting 300-305 HP and 380 lbft torque to all four wheels with the stock turbo so I would be very interested to see your turbo install process as I plan on upgrading mine.

id love to do some light modding to my 2009 Audi A3 2.0 TFSI Quattro but its really hard to find builds for the platform. This is probably the closest to it and most recent. Keep up the good work!

Good stuff dude!! happy to see it get buttoned up

Great vid, I put a k04 from an s3 on my a4 advant, but I do want an s4. With the pully upgrades they put out some serious bhp with little modification.

I love watching this and can’t wait for the next episode

Mad respect for keeping it 6MT!! Good luck on the build going forward!

I have a 2009 audi A4 really gives me inspiration to start and buliding it

You have Done a Long but great Job By your self!! Grettings from germany

Man i sure do love this car.. mine has.. a bit more than half the B and ALOT less of the stututu (none at all). Love your car! Hope i can get a bit more into doing this kinda fun stuff with cars soon. Maybe i'll get a B8 some day who knows.

Nice job! The last torsen quattro A4

Following you through my own build. :) Keeping me strong man.

Looks like somebody has some movie making experience. ;) Awesome work on both - the car and videos too. Really impressive.

just popping in to say I love this car and I'll be back tonight to watch the video

Incredible video! Congrats on getting the huge project done...or at least running and on the streets. Very cool to see.

Absolutely fantastic! ❤️ Congratulations my brother! 🎉 You did it! 👍😎

And just like that I now have the urge to build my A4 one that you are actually very familiar with sir. Hint hint I bought it from Milwaukee

Thanks for all your hard work ! I can’t wait to see more of this build and other you have planned!💪🏽💪🏽

Love the content and I feel your pain 100%. I had decided right about the same time as you to do a similar build (I'll post a video in the near future) but I used JE forge pistons with 10.3:1 CR and I only have a stock turbo at the moment and I plan on using a 2871 or a g25-550. Cant wait to see the HP numbers

b8 a4 was my first car and i absolutely loved it i drive a b9 now a4 for life baby

I dint know what's better the car or camera work ❤

Bro.. I watched all of these and I’m in the EXACT situation doing the work on my Audi myself n everything. It’s a black a4 B7 not b8 but yes this is one frustrating god damn motor to take apart and put back together.. and then do it again over some tiny stupid shit.. but u said it exactly.. rewarding to have built it over buy it. Built being a much longer process than u ever plan is a fact with these cars but thanks man.. I feel u on everything from A to Z that u say. Maybe one day we can cruise it together!

I’m going to Madison next weekend maybe I can spot you driving it

Congrats man! That's a hell of a build, i have an a4 B7 2.0T Quattro and this is exactly what I was expecting to do with it someday, i just don't have the money lol Love your car, love the mods You're the man

Man those rollers were 🔥. Cinematography is next level!

Very nicely done! I really enjoyed watching the series and actually learned quite a bit. Looking forward to more!

Huge congratulations dude looks absolutely beautiful, sounds amazing and I’m sure you will love driving it! I’m more of a bmw/Mercedes guy but this may persuade me lol anyway, looks so good!

Great series! Beautifully filmed and very informative! Awesome to see someone running this kit, would love to build mine in this way one day. Can't wait to see more videos! Subscribed!

Editing and cinematography are excellent!!!! Great work and nice build!!!!!

Awesome build .. been following ... I have a fully built motor b8.5 q5 2.0t also .. no big turbo or manifold yet .. but haven’t got that far yet .. but I love your set up ..

Love the build and series, inspires me to keep working on my a4 b8. Can’t wait for more content 💯

i just bought AUDI A4 B8.5 from carvana because of you today

Great content! I have a b8 S5, and never thought I'd be interested in a A4 build. I'd love to overhaul my car to nearly double the hp. I feel you on the monetary hit taken. Audi is ridiculously expensive. I'm subbed, I'll see you in the next one.

this was needed!!! we will like to see a launch and 1st to 4th pull

I just picked up a black 2014 A4 Quattro for $900 and figure when I have to do a clutch I'll take the block and head literally around the corner to our engine builder who does our dirt track motors both 4 and 8 cylinder. Whats the fuel economy like in this thing now? Love your series and your build, I have a cart stocked on IE now and am going to start sending parts to the garage door one by one...

I love your attitude Sir! Love your masterpiece even more 😍

Amazing video brother! I love the commitment and passion to the build, awesome!

Well got a audi now so i am glad to be welcomed

great video, i have not checked out the channel but i would recommend putting out more build content. i would enjoy seeing the mechanics and “science” behind the build, as well as maybe a parts list and what brands you like and/or dislike. love the video editing and quality.

I really enjoy that page and the way you approached this video, from the shots , talking about the car , your personality.. all of it, i really enjoy the content i just watched and it was my first time on the page. Def getting a sub and the turbo sounds amazing , just get on her in the next video for me. Thanks have a great one man

The underdog 2.0 packs a punch