Officially Unofficial custom exhaust thread

[Machupo]

I was thinking about doing a custom 2.5" system sometime this winter (along w/ custom 2.5" dp's)... rather than use a X-pipe, has anyone used one of the crossover resonators i've seen on the magnaflow site (or summit site)? two pipes in, two out, but the x-over in the middle of the resonator.

just curious as i'll probably start sourcing parts in the next couple weeks (i'm dusting off the welding skills as we speak, lol)

[The Stig]

(2004 Audi A6 2.7T S-Line)

I found a couple videos to add to this thread:

Stock:

Click

Straight pipe:

Click

A mod. should make this a sticky no?

[Kievskiy]

bump for noobs...

[patrick23]

magnaflow mufflers
magnaflow 4" angle tips
Vast performance piggies (installing next week)

[Asix]

magnaflow mufflers
magnaflow 4" angle tips
Vast performance piggies (installing next week)

wow the tips look really awesome! I have the oval shaped ones.

[Stockblacka6]

magnaflow mufflers
magnaflow 4" angle tips
Vast performance piggies (installing next week)

What is the part number on the muffler and tips? The tips, are those the 7 inch or the 4.5 inch in length? Thanks Do you have a sound clip?

[murphy_boy_2]

magnaflow mufflers
magnaflow 4" angle tips
Vast performance piggies (installing next week)

What magnaflow mufflers did you use?
- Love the set up

[chrisbostonusmc]

the amazing thing is this exact thread is linked in the wiki! holy horse testicles batman!

[Mantis]

I am currently running open DP's to stock center res, then straight pipe back. It is not too loud at part throtlle, does drone. I am changing it out to a Y into 4" custom resonator, 4" single to the back, keeping the tip turned down. I will post pics when it is completed, add some sound clips as well

[2001A6]

I am currently running open DP's to stock center res, then straight pipe back. It is not too loud at part throtlle, does drone. I am changing it out to a Y into 4" custom resonator, 4" single to the back, keeping the tip turned down. I will post pics when it is completed, add some sound clips as well

This will sound great. Single exhaust sounds so much better on our V6s than this true dual set up the A6 comes with. Though I loke the look of dual

I am making a custom set up similar to neuspeeds setup on the B6 3.0. Y after cats into single pipe to the back of the car, then another y to connect the mufflers.
Sounds Mmm Mmm good.
http://www.youtube.com/watch?v=SscdrRYvQLc


I have an x pipe now, no secondary cats, no resonators, only Remus mufflers. I like the WOT sound up high in the rpm band, but theres some awfull rasp about 3k...

http://www.youtube.com/watch?v=vfWnIyitx1E

http://www.youtube.com/watch?v=VxVO3...eature=related


I'm super anal about exhaust, haha.

[patrick23]

thanks! took some time before I could finally decide. And the magnaflow stock pics suck! so I wasn't exactly sure how they looked till I had them in my hands.

super happy with them though

[Mantis]

I think it will sound good, should be a deeper rumble. Also plan on doing it in aluminum for weight savings, titanium if I win the lotto this week

[Mantis]

I just got back from my fabricators place, we decided on Y to 4" all aluminum, custom flow through 14" aluminum muffler. V banded at the Y, set up for future turbo set up. I am booked for march, but if he can, he'll squeeze me in earlier. Should be a significant weight savings

[jeffp477]

hehe.. just got mine weekend...


2.5" piping after 2nd cats
2.5" x-pipe
2x 14" resonators
NO mufflers
Tips....

so far i like the setup..
i might get mufflers if i get tired of it, but it sounds really great though..
sorry no vids yet... ill upload one soon..

[Mantis]

That's sound like a great setup Jeff, with the dual resonators and x pipe it should sound deep and mean. My current setup is raspy at 4k, but it looks like you would have eliminated that issue with this setup. Let's hear it, waiting for some sound clips

[jeffp477]

That's sound like a great setup Jeff, with the dual resonators and x pipe it should sound deep and mean. My current setup is raspy at 4k, but it looks like you would have eliminated that issue with this setup. Let's hear it, waiting for some sound clips

yup it sounds great.. deep sounding no drone, good flow, can feel the power too.. im gonna do a vid when i get a chance, i don't have a fancy camera that capture the good quality sound, i'ma borrow my sisters cam, and planning to bring it to the open road i always go to..


so far i got the cheapest setup...lol.... and no worries on xpipe cause no mufflers... resonators acts as mufflers...i also got some mufflers with oval tips just in case i want to quiet her down a lil bit..

[patrick23]

^^ magnaflow tips Product ID :35121

7" in length
4" diameter

2 mufflers : Product ID: 14616


no sound clip yet :( but sounds great!!!

[Stockblacka6]

^^ magnaflow tips Product ID :35121

7" in length
4" diameter

2 mufflers : Product ID: 14616


no sound clip yet :( but sounds great!!!

Any droning?

[patrick23]

not at all- ^^^^


but I don't have the piggies on yet - they're going in this week

we'll see after that-

[ACHAHockey]

2000 A6 4.2


-Downpipes (gutted Y, N, or Both): N
-Size of piping: 2.5"
-Mid-muffler/resonator Y or N (brand & model): Y, stock
-Rear muffler (brand & model): Vibrant
-Tips (size, model, and brand): Vibrant straight tips
-Complete price (if you don't mind, and maybe where you bought the parts): $450 fabbed and installed at Innovative Tuning.
-Comments: I started off by having my tuner remove the rear mufflers. after about 2 weeks of hating the drone, I had him put on Vibrant mufflers. drone is still present, but not as bad as it was straight.
-Sound description (and clip if you have one): http://www.youtube.com/watch?v=ImoESEhboKg

[murphy_boy_2]

Never mind, didn't read far enough down...

[nrowensby]

What determines if you have the cutout in the rear valance for pipes? Did the cutout pieces come in a certain year or certain model?

[2.slowT]

What determines if you have the cutout in the rear valance for pipes? Did the cutout pieces come in a certain year or certain model?

Facelift cars, so 2002+ on the 2.7t

[jaycurn]

So I have a C5 S6 Avant and I have a rattling, failing cat and I'm thinking of going the custom exhaust route and need some advice. I'm thinking of trying to find someone to do piggies with my stock DP's (maybe gut the pre-cats). I'd like to remove the main cats altogether since one is going bad already, but don't really want to deal with CEL's all the time. Has anyone tried the "J" pipe 02 sensor bungs to avoid CEL's? Would I be better off with high flow cats? Are the CEL's anything to be concerned with long-term when it comes to 02/Cat related codes and the effect they will have on the engine? What about an "X" Pipe? From the cats back, I'm thinking of removing the center resonator and keeping the stock mufflers for now till I can upgrade those later. I know it's a LOT of questions, but there is the long and the short of it. Bolt up set-ups for this car are just too rich for my blood at the moment and while I have a failing cat I thought it might be a good time to try something custom to get a few more horsies and maybe a more balsy sound effect. Any tips or suggestions would be much appreciated! I've tried searching and just haven't found exactly what I'm looking for. This 4.2 needs to be unleashed!!! Thanks a lot in advance guys... you're insights are always helpful and educational!!

[wofman]

Bummer on failing cat, but see no reason not to scrub emissions as I've often noted here; and 4.2 yields little in power with exchaust mods, so only issue is changing resonators/mufflers to change sound (beware of drone!).

[jaycurn]

Yeah, not too worried about the emissions either since where I live we have none, but my two main concerns with all of this are CEL's and the infamous "Drone" factor. Still looking for the right solution and hoping my local indie exhaust guy will have some ideas, but wanted to get some ideas of what Audi people have tried and been happy with performance/sounds-wise with the 4.2 engine.

[cbock]

Tracking the car is fun....Here's a sound clip as I go by at 120mph.


My setup has changed slightly since my original post. Now running K04s with 3" DPs.

[ccomengee86]

damn, I need a better camera lol

[Bashar Khalifeh]

ccomengee86 car sounds really awesome, and love those rims

[2001A6]

allroad sounds good!

[ccomengee86]

^thanks, I'll use a better camera next time.
It sounds clearer in person.

[bryzf1]

Oh man! Those wheels look even better in action!

[ccomengee86]

Oh man! Those wheels look even better in action!

I'm going to a car show this weekend and will be rolling out w/ other cars at least 10 cars deep. Expect some rolling shots by the next week. =)

[bryzf1]

Sweet... can't wait to see 'em! I finally decided on some wheels and am buying them this week. They are the 18x9.5 +20 Work Cr kai's off of Cartel's b5 rs4 converted imola avant. I'm planning on getting some 20's down the road...

[ccomengee86]

Isn't that too high of an offset?
Mine's 20X9.5 ET2

Wow they good goooood. I like them.

[bryzf1]

no, that's exactly what Matt/Gumby is running w/ his Rotas and he is just running a 3mm spacer in the front to clear the brakes. I'm gonna put a 5mm spacer all the way around for a final offset of 15mm and 275/40's on all fours.

[ccomengee86]

The wheels will be tucked in a little but since you're putting 275's they'll look flush with the fender flares.

[bryzf1]

that's what i'm hoping for... but I thought you were at a et15 w/ the spacers you had on there

[ccomengee86]

I thought my wheels were 8.5" wide but it turned out to be 9.5"s haha

[bryzf1]

lol... surprise