Watch This Before You modify Your Audi (S4/S5/SQ5) 3.0T

[@tylerblazer]

I have a magna flow resonated X pipe that helped the rasp. Day and night.

[@Whitedirtymax6.6]

mine has an X pipe replacing resonator with muffler delete and aftermarket tips sounds really good and pops

[@mezoori]

Fellow S4 B8 owner from brisbane with dual pulley, TB upgrade, heat exchanger etc. I have a full custom exhaust. The shop suggested the X pipe join be closer to the engine (rather than the rear), unlike the systems you can buy online. And it sounds amazing. I also have a valved muffler, so its super loud when I want it to be, but i can also quiet it right down when I want to. Total cost was $2500AUD installed. Sounds amazing. I can sound you sound clips if you'd like

[@TheFittingBay]

Hey man, thanks! Have you also gutted or removed the OEM cats? How’s the rasp level if any at all? I’d love to hear it man. DM me on Insta @nathanstephenss

[@funnyvids4uman]

hey man , whats does the rest of exhaust look like? where can i hear some clips? thanks

[@TheFittingBay]

@@funnyvids4uman i can get some clips. Currently test pipes > stock DP > stock centre > smaller aftermarket mufflers. Raspy and sounds terrible. Going in to have some custom work done and fix it

[@binderrik087]

Hey man. I’m in Brisbane and would love to see these videos. About to go Single Pulley.

[@TheFittingBay]

@@binderrik087 dm me on the gram @nathanstephenss and you’ll love single pulley so much fun

[@CrazyWeeMonkey]

Good to know! I have a C7 A6 with this engine so my experience will probably be different, but I'll pay attention to these issues in case they crop up (I plan to do a stage 1 tune + rear muffler delete or electronic cutout exhaust).

[@tmtoplak222]

Even without test pipes my car sounded like crap with stock cats, stock exhaust and IE downpipes. I recently added a AWE Touring system and its much improved.

[@shiftya4]

A resonator and a quality muffler is a must in almost any street exhaust to cancel out some of those nasty frequencies in my opinion. X or H pipe can help to depending on the engine, firing order, pipe diameter etc. The issue with cars that use a super charger vs a turbo is with a turbocharger a lot of the sound is muted or muffled as it passed through the turbine allowing cars with this set up to get away with less sound suppression. But anyways most of you guys already know this. Just found the channel. Good stuff keep it up brother.

[@paull3179]

Driving with an AWE touring exhaust that was so annoying for the last 6 years and I finally switched the middel muffler to stock and the sound is so much better and not as loud with a deeper low sound instead of constant horrible drone. Have a 455hp tune. Awe sends vibrations through the car that you feel in the seat each time you accelerate.

[@paull3179]

I had a dsg tune too that took about 9 hours of work and now the power does not get cutoff on hard acceleration and the limits are raised. Esp has to be turned off if you want to take off very quickly or you get wheel spins and power cuts.

[@bugeye02707]

For the oxygen sensor codes put extensions that screw into the 02 holes then the 02 sensors after the extensions and that should fix your codes, as for catalytic converters you getting them put under the car should fix the rasp and smell, thats why jh motorsports sells a downpipe kit with cats at the bottom, also the downpipes if you can get them moddified as a xpipe will fix the rasp even more.

[@TheFittingBay]

Legend thank you 🙏🏽

[@mdrob79]

Feel your pain. I've been through the exact same issue. BIG front mufflers are key! That is what kills the rasp, x-pipe helps nicen the sound but won't kill the rasp completely. Don't put cats down stream, 2 reasons, 1 your CEL will be on, your O2 sensors want the heat from the factory location. 2 you will lose real-estate for those BIG mufflers. My final config is highflow metal cats from Germany. I'll reply with the brand. They are the only ones that will cope with the heat. 6in 2.5 magnaflows where the factory resonators where. Then x-pipe. Before rear wheels 2x 4in 2.5 magnaflows. Boxes are rear are RS5. Hope this helps! Cost me over 7k sort out! I see your in Melbourne, try Performance Exhaust, great shop.

[@TheFittingBay]

Thank you so much. I’ll have the exhaust shop look at this and do as much of it as possible. Also heard good things about Performance Exhaust so I’ll take it there. Thanks!

[@dtrywets6266]

@@TheFittingBay I'd recommend ISP 200 cell Cats.

[@muffinatordlux]

I like the sound Compared to other sports cars the problems seem minimal

[@CJR7151]

Don’t know if you fixed the o2 sensor issue. But highly recommend spacers for the sensors, the vibrant J spacers are a common fix. I also bought new sensors and fixed the check engine light

[@Kendkend]

So the spacers got rid of the check engine light? Still good?

[@CJR7151]

@@Kendkend it should, my o2 sensors were also cooked so definitely inspect them. I’ve had mine for several months with no light

[@henrykeller9015]

Appreciate these videos! Thank you for posting the good and the bad! I will use your vids to do my own Stage 2 IE. In the spirit of sharing...I have a '17 S5 - Cab 3.0 TFSI and ended up doing a "frankinexhaust" to solve the same issues. In short, highflow cats, IE downpipes that I had an exhaust shop chop down and weld on high-flow long-tube resonators, leading to a flowmaster resonated x-pipe to flowmaster super 40's all done in 2.5" diameter piping mandrel bent with slightly upsized T-304 dual exits each side. Looks very close to stock but just a little better IMHO and was WAY cheaper than the AEW's, Borla's, Miltek, etc., and is full stainless, and sounds really very nice - NO rasp, low rumble at idle (for a V6 lol) and nice cruising sound that OPENS UP and sounds wicked when you get on it. Please keep the videos coming!

[@CEOofClappin]

I've done some research and apparently this only happens with the automatic transmissions, and I read that almost no exhaust manufacturer makes a system meant for the automatic because of how the gearbox works. But I've never had this problem with my manual transmission and almost everyone I've met with an auto trans has had this problem

[@TheFittingBay]

Time to chuck this out and get a manual 😜

[@Bytrl]

So my plan for exhaust is something I haven't seen done, and don't know if it'll work. I plan on replacing both resonators on the downpipes with 12 inch vibrant bottle resonators, and replacing my mid muffler with a single 2 1/2 inch vibrant ultra quiet resonator, a couple 2 1/4 - 2 1/2 y pipes, and a custom bent 2 1/2 s pipe to meet the resonator from the downpipes. The ultra quiet resonator will serve as the x pipe in place of the mid muffler. Should be louder, but be a grunty sort of loud, not a raspy one. Replacing the downpipe resonators with slightly longer vibrants serves 2 purposes. 1: i have a nasty rattle on decel from one of em when I'm next to medians, and 2: they will offer more dampening. My end result should be damn near oem decibel ranges, with more throaty low end grunt. I hate rasp, and irritatingly high pitched exhausts. My fear is restricting the exhaust going to a single 2 1/2 inch pipe in some sections when the sum oem diameter of both pipes is 4 1/2 inches. I know from past experience a 2 1/2 inch exhaust is good for 400ish before becoming a bottleneck, but an engineers take on this platform and idea would be awesome if there are any here to chime in. I just want to know if I risk suffocating the motor or overheating the cats from back pressure if I reduce 2x 2 1/4 pipes down to 1x 2 1/2 pipe in the center, and than back out to 2x 2 1/4 pipes to the rear mufflers.

[@TheFittingBay]

Man that sounds like a dope setup but this is something I’ll give to the exhaust shop and say “fix it” lol. I already made enough mistakes just throwing parts at it. If anyone has any input that would be dope 👌🏽

[@Therzza]

JHM test pipes, resonated DP, AWE touring exhaust...high flow, nice sound, not drony/raspy/boomy.

[@Kendkend]

What to do with check engine light though?

[@Therzza]

@@Kendkend o2 sensors need to be installed further downstream on an elbow - JHM has recommendations

[@patrickjustus]

I have a 2013 A6 with the 3.0t and stock they are about 330HP and the stage 2 tune installed by a local shop is just under $1500 and they said it will put it around 440HP at the crank. if I do intake, which I just ordered an injen intake, and custom exhaust setup that will add even more power. so like literally I will be in it under $2k and it will be plenty powerful so don't know why you numbers are so high for your upgrades? the shop said if I did the stage 3 with the dual pulley and injectors and all that crap it was like $4k but doesn't take me over 500HP so why bother. stick with the stage 2 and you will be able to destroy a lot of cars on the street or freeway with that 450HP with the supercharger and AWD. : )

[@Skygrape]

Installing test pipes worst mod agreed. took 12 hours for 6 bolts in my garage. Same problem here, stage 3, JHM test pipes, JHM high flow cats and x-pipe. it sounds like angry garbage bees above 2k with the stock mid and rear mufflers. The IE tune fixed the CEL for the rich to lean O2 readings, they released an update for the stage 2 w/ throttle body tune a month or so ago.

[@TheWarawaj]

that sound is your stock resonators. Had the same issue with mine before I finished the exhaust system.

[@TheFittingBay]

I've got the magnaflow muffler for it :)

[@sqattro_world]

I feel your pain.. I have a SQ5 (Stage2+) that had the same issue. I already had AWE touring cat back and Non-Res Downpipes. I ended going with JHM Cat relocation kit (test pipes, downpipes and hight flow cats). No issues and sound a bit quieter as well. I also have the tune mapped for the new set up too.

[@aciid_0]

I've been through this. One cat failed and I had the other gutted. Didn't go test pipe as hollowed OEM cats provide some resonance damping. I've had some magnaflow 59906 cats fabricated in to a drop-in replacement for the centre box (Milltek race exhaust) after which the drone went from acceptable to teeth-rattling levels! Cheapest fix would be a "quarter wave resonator" or even better "helmholtz resonator" these can be easily calculated online and fabricated cheaply. Biggest problem is finding the space under the S4 as it's already quite tight. The drone on these cars is mostly around 115hz - there's a smaller spike around 140hz. Knowing that, now you can tune out those frequencies with a tuned resonator either in traditional "silencer box" size form, or by making one of the 2 I mention above.

[@TheFittingBay]

Legend! thank you.

[@mephistohate]

i have an A6 C7 3.0T, most stuff i read people were removing the middle muffler box, had a local exhaust guy do the first work and instead of that he removed the front resonators and the rear mufflers..... sounded like shit, really loud and had a fluttery leaky noise on deceleration. Decided just to take it to another place where they replaced the central muffler with an oval one and fitted two round mufflers before the tips. now it sounds beefy, almost v8 like at times and paired with the cold air intake that supercharger whine just tops it all off

[@TheFittingBay]

Hell yeah :)

[@sd70m2man]

I’m basically stock (on my 2010 s4) except for the ecs cat back exhaust which has an x-pipe right after the down pipes, still have the cats engine side but when I put the exhaust on I checked the cats out and they didn’t look clogged. And I occasionally get an intermittent cat code.

[@TheFittingBay]

Keep an eye on them and HOPEFULLY you never have to remove them

[@sd70m2man]

@@TheFittingBay yeah I agree and the exhaust is raspy still even with the x-pipe and I’m not sure why

[@BobBob-qu9wr]

Do a custom exhaust 3 inch 3.5 inch pipe all the way through manga flow resonator and and x pipe with quad tip it sounds pretty good

[@jordanrumsey2115]

So, if you're doing the tune and pulley, get the cats welded further down the exhaust system so they wont be melted away?

[@TheFittingBay]

That’s the plan my friend :)

[@marcmann982]

It's common knowledge on any car running test pipes or cat delete it's going to get and if you done research you would have noticed that this is common for these cars and it gets raspy. If that note you've also would have noticed that most people get magnaflow 11385 or the borla x pipes. That kills a lot of the rasp. You should do more research before you just go willy nilly into something. Especially when tons of people have done it before

[@vvnecrovv]

Tell em!

[@audis5512]

Hey buddy love your content Are you saying you need different cats on a single pulley upgrade or dual pulley upgrade? Also, If dual pulley what size is the crank pulley you are using? I just tuned mine with Unitronic single pulley upper upgrade with full AWE exhaust and resonated DP. You think mine will fail with this set up? I was told by tuner my cats should be fine

[@MrJokeBFH]

Can see u have some kind of apple car play in your car? Is that modded or standard somehow? I have a S5 2011 and would be great with that.

[@TheFittingBay]

Yeah brother right here: shoptfb.com/collections/audi/products/audi-a4-a5-q5-mmi-10-16-including-s-rs-models

[@MrJokeBFH]

@@TheFittingBay Nice! thank you

[@jj-tq4hx]

I just recently purchased a CTS crank pulley for my A6 3.0T and going stage 2. So my cats will get demolished?? Should I get a heat exchanger also?

[@tylerblazer]

Vibrant resonator and muffler’s are amazing.

[@dilpreetsidhu658]

The ECS exaust system sounds super nice tho. About $1700 usd. Check it out it’s pretty dope

[@2streetsweeper]

That's what I'm planning on getting.. but in the description it says something about a code.. so I gotta call and ask them about that b4 I purchase

[@dannyboy8067]

Should've watched ignition tubes old s4 and sq5 vids mate, he's had and got rid of test pipes in the past.

[@JuergenGDB]

Yeah as soon as you add the upgraded pully's, or go stage 2+ your cats are toast. If your going Stage 2+ you need to have a custom exhaust. Sure I spent about 2500 on my APR DP resonated, AWE Touring exhaust with an APR intake. Stage 1 tune, car sounds fucking great, no drone inside the cabin and no worries on my Super Charger dying in two years and replacing the Cats because of heat. issues.

[@numbaz9172]

Hey Juergen.. I’m interested in a similar setup. Couple questions. 1: Have you installed a heat exchanger. 2: Have you gone to Stage 2?

[@goldenn80]

Thanks for sharing your experience. Very informative.

[@funnyvids4uman]

Hey man ,love the vids. Got a s5 myself that ill be tunnig...quick question ,when u use the other car to keep your s4 battery charging when flashing do u connect the cables to the back of your s4 or you use the terminals that are in front of the engine?

[@TheFittingBay]

If your S5 has a good healthy battery and it doesn’t die quickly and ignition doesn’t turn itself off after a minute, the front terminals are fine. If the battery is old and dies quickly then hook it up direct to battery!

[@funnyvids4uman]

@@TheFittingBay thx man , it seems healthy...lookin forward to see what u will do with your exhaust cause that is my biggest gripe At the moment i have a valved exhaust ans would hate for tst pipes to ruin the sound.its similar to the ecs one.

[@z32twinturbo13]

Just got a S5 2013. I plan to get a custom exhaust. Can I just reprogram the ecu when I upgrade the upper and lower pulley?

[@jmiller9972]

Miltek resonated...red star test pipes ..will sound much better

[@jrstok1]

What am I listening for? I am not hearing what he hears. I have an S5 I have been thinking of tuning. What I am getting from this video is if I add power, I need to upgrade the catalytic converters?

[@TheFittingBay]

Sounds terrible. Rasp level out of control, drones and overall bad sound. And yes due to extra heat the cats fail common issue for these cars with dual pulley etc

[@raudirs775]

I had ecs resonated valved cat back with jhm test pipes it sounded horrible with valves open. Even with valves closed it was wayyyy better but still didn't like it. I ended up putting ie downpipes to stock cat back and more than happy. Still enough rasp to let ppl know you want to play around if need be.

[@hazaelvillatoro478]

Is there anything major you'd need to take care of for just a stage 1 tune? I know you don't NEED to change anything but are there any drawbacks?

[@dariuswhat6622]

Spark plugs apparently, waiting on ecu tcu in the mail rn

[@evansjoshua86]

So high flow cats would solve the problem?

[@TheFittingBay]

Not sure yet man. I’ll keep you guys posted

[@butlr732]

"fellow b8 s4 owner here, youre gonna regret that muffler delete when those cats go due to all the heat this engine makes(Especially when tuned). " i put this comment on a video of yours 3 months ago. just saying bro. you were warned.

[@TheFittingBay]

Haha lucky I pulled them out before they failed 😛 none the less currently sounds horrible :(

[@cryptocarpenter599]

Someone with some sense. My jeep crew goes deleted everything and its way to loud

[@ivanteo4804]

Hi friend, im planning to upgrade my car from stage 1 to stage 2. Upgrading the sc pulley and decat it with stock exhaust. Any better recommendation to do it? Thanks

[@TheFittingBay]

I’m currently working that out. Decat with OEM exhaust isn’t too bad. Definitely not good and loads of rasp but I think an X pipe wil fix that. I’ll confirm in a future video

[@slammedeuro104]

I'd recommend putting in high flow resonators and a xpipe instead of the h pipes. I'm not sure what size stock is but you don't need to upgrade to a much larger pipe either... most people go way too big which can be bad as well.

[@Zi9makin9]

sooooo, basically just buy a proper fully made exhaust system? like a milltek or armytrix or awe exhaust

[@TheFittingBay]

Hind sight is 20/20 brutha

[@lou4nysq510]

How is she now?

[@TheFittingBay]

Yeah man great :) exhaust still shit which I explained in the most recent video. I’ll have a solution for it soon tho

[@photorocket4550]

First world problem 😃 it's usually the first modification. Exhaust can make more power, but ruin the driving experience. I can feel your frustrations. I have a beater A6 and dream of something better. Best of luck from USA.

[@TheFittingBay]

Haha! Thanks man :)

[@Norcalmotormedia]

Same keep your eyes on 034 motor sports instead of euro tuners for newer s4 or a6 models amd old ones

[@captain052A]

how is the 7 speed dsg? i see a lot of them fail when modded. is it true? is it reliable? any tips

[@TheFittingBay]

It’s been awesome for me man but they do have their issues that need to be looked at and fixed if needed

[@dagnut]

Good honest video, thanks

[@Yourhandinmine]

I have 2012 A7 that won’t start it cranks and cranks and eventually it will start but been to many shops and spent stupid money trying to fix it and nothing 😭

[@TheFittingBay]

Aw man that sucks :( hopefully it’s fixed soon enough

[@ingegneriafacile]

So please which downpipe I have to use

[@TheFittingBay]

I used integrated engineering

[@ingegneriafacile]

@@TheFittingBay but you said that the sound is crap

[@TheFittingBay]

@@ingegneriafacile Do you have test pipes?

[@kevthegame]

Where the did you get vcds?

[@TheFittingBay]

From their website haha 😛

[@brandonstephens2809]

Dope video 🙌🏾

[@TheFittingBay]

Thanks Brandon

[@d.a.m9416]

Good luck with the exhaust

[@scalways]

So how do you put in test pipes and not expect it to have rasp? Literally every single car I've put test pipes on it's rasp. Then you went with an X pipe, thats Literally the wrong thing to do! X pipe CAUSES RASP. All you had to do was Redstar and add a baby res. Not bashing you mang it's just one of the most sorted issues with the platform and the fixes have been in stone for yrs now. I feel bad you had to invent your own wheel.

[@nx555v]

Redstar is the way to go for sure

[@jeffwithglasses6976]

F**k man im sorry... b8.5s4 6mt I only did the stage 2 SC pulley and tune. I already needed a new clutch from that. I hope I don’t need to do cats too..

[@TheFittingBay]

I hope so too my man all the best

[@quattro4944]

Jr21 wheels ?

[@TheFittingBay]

Very similar but not quite. They are MP-RH from Marsperformance

[@reese9557]

Good info bro

[@MrGorpstine]

Great content!

[@Mitchumthegreat]

Sub'd to follow this... I just did stage 1 and I would love to see you figure it out before I go any further.

[@Mitchumthegreat]

I found this possible solution to your exhaust rattle. kzbin.info/www/bejne/hoPZoKetdqiFfLs

[@J3n555]

I just bought My s5 3.0T and this is the reason why I wont go further than Single Pulley.

[@TheFittingBay]

Single pulley is still a great increase. It’s probably the most noticeable in power.

[@J3n555]

@@TheFittingBay Great videos you have. Subbed

[@TheFittingBay]

@@J3n555 Thank you ☺️

[@funnyvids4uman]

@@TheFittingBay u recon that from single to dual pulley u did not feel that much of a difference?

[@TheFittingBay]

@@funnyvids4uman more power no doubt and heaps more down low but the biggest feel in difference was stock to single pulley

[@nicholaslulgjuraj863]

I gutted mine now it’s loud asf

[@TheFittingBay]

Any rasp?

[@Angelocart]

First, love the car man 👍🏼

[@TheFittingBay]

Thanks man 🙏🏽

[@davidmusiyenko4158]

Lol, jhm test pipes, and then JHM high flow catted downpipes will fix all of this and make your car sound amazing. Bruh.

[@davidmusiyenko4158]

Too much whining. But yes the amount of money that you have to spend is too much agreed on that.

[@ladysman21703]

Just get a 4.2 lol

[@mavricxx]

Might as well buy a Mustang, much cheaper and easier to upgrade and make big power than the Audi.

[@TheFittingBay]

Haha

[@zerofuckkksgiven8027]

Nah, Audi is far superior in driving performance and experience! Not to mention all wheel drive, interior and exterior is just so much better then a mustang. Some people just have different experiences, just have to find the right setup and shouldn’t have any problems with a S4 at all. The 3.0 is one of the best engines Audi has made and it’s pretty bulletproof. Trust me on this, I traded my new mustang for a new S4, it’s night and day on and overall car and experience!

[@ingegneriafacile]

Terrible