View Full Version : Welded My Custom Exhaust In, But....

08-06-2013, 08:26 PM
So I finally got around to getting my custom exhaust built and put in for my 98 A4 2.8L and after almost two and a half hours, started it up and disappointment...

But I have pictures of the process to share!

The issue is that it just sounds so god damn ricey. I'm actually embarrassed now to drive it and accelerate. The build was I took a 2.25'' straight pipe exhaust with a muffler off of my 1.8T parts car and put it onto my 2.8L. Cut off a few inches after the two cats and welded on a custom built Y pipe. Then welded on the straight pipe with the muffler. The muffler is called a Raptor and I looked up the price, $30.... Should have given away right away that it was going to sound like shit. But I was hopeful.

Picture time!

Started with a custom built Y pipe,

Cut off the old stock exhaust, also can see the exhaust I pulled from the 1.8T

Cut and test fit the customer Y pipe,

Then we cut and test fitted the 1.8T Exhaust I had, Then we welded it to the Y pipe

Back side


Welding on the hangers

Finished, Put on a 3'' Pipe off of the muffler as a temp tail pipe since the one that came on the muffler was god awful looking. (Bonus LED License Plate Bulbs)

So yeah now my exhaust sounds super ricey and I hate it. The build was fun and interesting but I need a new muffler.... I want a deep sound but I don't have a ton of money to throw on a new muffler... :( I'm kind of regretting my decision so far unless I can get the sound under control and sounding nice. I need you're muffler suggestions.... I really don't want to spend more than $50 (LOL I KNOW, It's like nothing for a good sounding muffler). And I guess maybe you're other ideas that I can do to make the sound nicer... I'm going to try and get a video of it so I can show you how bad it sounds... It's like the high pitch whine from like 2500-3000 RPMs It's kind of deep but really drowny up until 2500...and then it quiets down above 3000. Going 45-55 in 5th gives really bad drone, and going 70-75 in 5th isn't really bad at all, can barely hear it.


08-06-2013, 08:38 PM
Should've just cut off the muffler and added dual tips out the back. A lot of people who install the MG 14816 have to drive around with no muffler for a bit to get it installed and they say it's pretty nice.

08-06-2013, 09:24 PM
You could try adding a resonator before the Y pipe, or 2 after the split. That should cut down the drone.

08-06-2013, 09:34 PM
I'm more so concerned about the horrible ricey whine than the drone right now. I know people recommend megnaflow, remus, or vibrant mufflers for A4's...But are there any around $50 that actually sound good even by these brands?

On my previous car I owned I put on a N1 Catback exhaust (With a N1 Muffler, aka "fart cannon by some") and I didn't think it sounded that horrible and ricey, but that was on a 4 cylinder 03 Lancer Oz Rally... I mean it did sound a tad "ricey" but it sounded like 25x better than what I have now on my A4.... I don't really want to put on a massive can muffler on my Audi but I didn't mind the sound on my other car....

I just want a good recommendation for a muffler that sounds good and deep and doesn't whine and sound like rice from people who own them on the 2.8L lol.. I know I'm asking a lot

08-06-2013, 11:45 PM
Should've just cut off the muffler and added dual tips out the back.http://price.womenobey.com/01.jpg

08-07-2013, 12:12 AM
You need to simply add a resonator and it will sound much better.
I did this on my MK4 1.8T nice tone no drone....

Go to Autozone and get a Cherry Bomb resonator 2.5" inlet outlet and 16-18" long install after the y-pipe.
As above stated remove that (whatever it is) and add dual tips Pep Boys and Advanced Auto sells this one.
Just have it welded on.

I have the tip in my garage if you cant find it Ill sell you mine $30 shipped.

08-07-2013, 07:45 AM
Add two cherrybomb glasspacks. You have noise reduction from the muffler but no high end reduction from resonators.

08-07-2013, 08:48 AM
So basically forget about a different muffler? Remove the shit muffler that's on it now, add in a new aftermarket resonator, then dual tips? Don't glasspacks wear down over time though and get louder and louder? About how long does it take for this to happen? Also I'm looking at my bends on the exhaust and it seems as if I have like no room to throw on a resonator.

08-07-2013, 10:35 AM
The fiberglass in a glasspack breaks down over a number of years. After 6 months you'll notice it a bit louder, but nothing obnoxious. If you want replace your stock muffler with a magnaflow, that will really improve the noise. A resonator earlier in the piping will help.

You can find 15"

You could leave this muffler raw with no tips for a stock look but great sound.

08-07-2013, 12:27 PM
Got a video of how it sounds... Mind you this is off a smart phone so the sound quality will already be crappy... But when I quick rev it you can hear how ricey and whiney it sounds...

08-07-2013, 12:48 PM
Yup, it at least needs a resonator. Those type of mufflers have thin baffles and everything and it gives it the "tinny" sound. Replace the muffler with a cherrybomb and put another one earlier in line.


08-07-2013, 01:23 PM
So replace the muffler I have on it now with a glasspack? But also add another one after the Y?

08-07-2013, 09:09 PM
Ugh Idk what to do. I want to figure this out fast but I don't want to pull the trigger too soon and buy something I'm going to regret also... Anyone else have custom exhaust setups that they can recommend certain type of glasspack / muffler etc that they're running.

I'm thinking of getting the http://www.summitracing.com/parts/mpe-11148/overview/ Magnaflow 11148. I have a buddy with a MK4 Vr6 GTI with a magnaflow exhaust and they sound really nice. I also found this video with a 11148 on a 03 Jetta... http://www.youtube.com/watch?v=XHLYL16uQ_I

I also found it for $80 on ebay so I save 9 bucks haha from buying it from the site...

08-07-2013, 11:19 PM
I got my exhaust put together with a Magnaflow 14815 with a Vibrant 1792. It sounds awesome in the upper reachs of the RPM range but with the taller gearing of the 2.8 it really drones when putting around town.

08-07-2013, 11:44 PM
Ryan, that video just shows the sound of a VR6 with a slightly open exhaust, the Audi v6 is different (Just like the video I posted earlier)

The typical (And I mean probably more than 50% of the v6 custom exhausts) is a magnaflow dual outlet single inlet muffler like posted and then some type of glasspack round muffler earlier in the system.

Any cheap, not computer designed system will have some drone, but typically not that bad. Your current system sounds like ass.

08-08-2013, 08:52 AM
Exactly.. Which is why I'm like 85% going to get the magnaflow 11148...Put it on and if the drone is too bad I'll put on a glasspack/resonator after the Y. I just want it under control for now until I can gather up a bit more money to add in the resonator etc if I find it has too much drone. Drone doesn't really bother me too much but It really depends on where it happens on daily driving speeds I guess. The drone I have now isn't unbearable.. It's just currently when I hit like 2500-2900 rpm it gives off the very tinny/ricer sounding exhaust and that's what bothers me. The drone isn't terrible, it's loud but with the magnaflow it sound dampen it and make it deeper? Correct? Which wouldn't bother me. I would like to order this tonight after I'm off work if people think it'd be a good move (And then add in a resonator later if I find it's too loud).

Also Delta, I'd love to get the 14815 but I don't have $200 to throw on a single muffler lol... $85 is above what I was hoping to pay lol but I know I must make a sacrifice of some to get it sounding to where I'm satisfied.

08-08-2013, 08:15 PM
Bought the Mangaflow 11148, I'll update this thread with results after I get it and install it. Says it'll be here the 14th and hopefully I'll be able to get it welded on the weekending following...

08-13-2013, 10:53 AM
Magnaflow 11148 Performance Muffler came in the mail today! Excited. Hopefully getting it welded on Thursday if my brothers friend has a open lift in his shop!


Will update again once it's on, hopefully with a video clip.

08-25-2013, 02:01 PM
Finally updating this thread, had the 11148 magnaflow exhaust in for about a week and a half now and I enjoy it. It was a lot louder when it was first put in but now it seems to have been "broken in" and it isn't nearly as loud. Or I'm just getting used to it.

Wasn't able to bring it into my brothers friend shop...He said he didn't want to touch it because the original muffler was welded onto a bent/not perfect circle and he didn't have the tools/pipe to fix it if we weren't able to figure something out. So I brought it to a REALLY cheap exhaust shop down the road. $40 to replace/bend a bit of the pipe and weld on my new muffler.

Off with the "new" old muffler

Test fit,

New pipe in and welded,

The only issue I have with it is when I had it installed I didn't have any tail pipes...So the sound went up into my bumper and into my cab of my car....making it 10x louder than it really was. It actually gave me a headache driving home. For now I found some scrap stainless steel pipe and just shoved them onto the outlets of the muffler until I can buy/find some nice shiny ones :).

Also... my luck... as soon as I had it installed I noticed my soon to go out flex pipe...is bad so now I get a awesome broken flex pipe sound every once and awhile...I need to fix that and it'll sound good again.

Pretty bad drone around 55mph in 5th...and is kind droney and loud in all lower rpms of gears. Sounds nice around 3,000-5,000 rpms. Perfect cruising at 70 in 5th. Idk if I want to put a glasspack or a resonator in at all because it's honestly not terribly loud...only in the lower rpms and I'm afraid if I put a resonator/glasspack in it'll quiet the higher rpms and that's already perfect loudness.

I tried to take a video of it...but my phone is terrible at recording audio and it just makes it sound terrible....

08-25-2013, 06:07 PM
resonator will help with that drone.