Officially Unofficial custom exhaust thread

[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

[ccomengee86]

yeah, no kidding. I must've miscalculated something. I knew something was wrong when I saw my tires stretching on what I thought to be 8.5" wide wheels.... but didn't really think about it till last week. A friend of mine told me that tires looked "weird" that's when I realized something was up lol

[slick50]

ccomengee86 so what are you running for exhaust, didnt see the details anywhere......

[ccomengee86]

ccomengee86 so what are you running for exhaust, didnt see the details anywhere......

just a muffler delete

[sleepa]

@ ccomengee86, you just cut off the muffler and welded up a straight pipe, correct?

and

@chisbostonusmc your car looks sick, i think i sent you a message but it doesnt show up in my sent items but how did you black out the aluminum strips?

[sleepa]

my bad, double post..stupid Internet Explorer

[ccomengee86]

@ ccomengee86, you just cut off the muffler and welded up a straight pipe, correct?

No, I used OEM exhaust clamps. NO welding =) so I can put stock mufflers back on if needed.

[nrowensby]

Mine is very similar... except, I'm running turndowns were the mufflers were cut off...

[ccomengee86]

In-car

[sleepa]

[QUOTE=ccomengee86;5063793]No, I used OEM exhaust clamps. NO welding =) so I can put stock mufflers back on if needed.[/QUOTE

That's a good idea. I haven't had a chance to get under the car yet, is the muffler connected with clamps or do you need to cut it at all? It sounds great btw. I'm assuming the air flows a little quicker but did you actually notice any performance gain at all?

[ccomengee86]

No, I used OEM exhaust clamps. NO welding =) so I can put stock mufflers back on if needed.

That's a good idea. I haven't had a chance to get under the car yet, is the muffler connected with clamps or do you need to cut it at all? It sounds great btw. I'm assuming the air flows a little quicker but did you actually notice any performance gain at all?

I cut them off then put straight pipes.

Answer here

[MUNDO_AUDI]

1993 Audi 90 CS Quattro Sport, (2.8 12v.)

K&N intake from a 3000gt turbo modified to work on the audi. (Intake does make a difference on how the sound comes out)

2.5" catback piping

Mid muffler delete.

Magnaflow 3" In 2.5" Dual outs. (stainless) Part #14815

Sorry this is the only vid i have. its kind of windy.

Muffler sounds a lot better now, it took like 4 days to brake in.

PICTURES OF CAR WITH MUFFLER (sorry its a little dirty)
http://www.facebook.com/photo.php?pi...6&id=746144301

http://www.facebook.com/photo.php?pi...e&id=746144301

Video
http://www.youtube.com/watch?v=Nr8BcjwzQ8s

[Despized]

Just wanted to do an update. I did finally get everything welded on and 2.5inch cat back exhaust with no mufflers and no resonator and it sounds sooooo pretty. this sunday I aim to do video/photos. keeping the 9inch long 3.5inch diameter walmart cheapy tips.

[Siricospeed]

x pipes are good on n/a v8's and whatnot, but turbo engines prefer no backpressure.

Well, all engines prefer no back pressure. What you are missing is velocity or the scavenging effect that proper tubing sizing will create. Yes, you can put too big a pipe on an engine and the engine will not take advantage of each pulse drafting after the other. Too small a pipe and the engine has to push the exhaust out because of back pressure.

[blkrhyno]

ccomengee86 do you have any pics of the muffler delete? Did you leave the resonators? Allroad looks and sounds great by the way. Also did you reuse the original tips or did you get new ones?

[ccomengee86]

ccomengee86 do you have any pics of the muffler delete? Did you leave the resonators? Allroad looks and sounds great by the way. Also did you reuse the original tips or did you get new ones?

I don't think I still have them. Did you try AW? There's a thread about it.
I still have the center resonator and I used the stock tips for the stock look.

[blkrhyno]

ok thanks

[blkrhyno]

I don't think I still have them. Did you try AW? There's a thread about it.
I still have the center resonator and I used the stock tips for the stock look.

Do you mind telling me how much you paid to get the job done?

[ccomengee86]

~$150 + 2 OEM exhaust clamps.

[farquad]

hey guys, just a question.. what do you think a 2.8 would sound like with just the resonators removed? straight-piping the resonators.. i have 2 of the resonators removed in my v8 ls400 and it sounds somewhat like a stock g35

[Despized]

Here is pictures of my new 2.5inch cat back no mufflers no resonators.
Main Gallery Link

1 Teaser photo.

[2001A6]

@Depsized:

Is that a cross over right behind the cats, or are the pipes just welded together for rigidity?

Either way, I want to hear it!

[hail7783]

Just had my exhaust done at AMS Autowerks. Custom DP's and straight pipe with 3" piping and Magnaflow mufflers. The drone is driving me insane! Right around 2200-2400 rpm's it sounds like a shit-can civic. So for a daily driver it may be a bit much. So I think I might put the cats back on as well as resonators. I can't stand the CEL light either. So it's either piggies or just keep the cats. Oh and after I'm coasting for a minute or so (not stepping on the gas at all) and then get on the gas even a bit ... POOF .... a huge puff of exhaust blinds the car behind me. I'm lucky I didn't get pulled over yet. Does this happen to anyone else?

I've read through the posts and some people have put up suggestions and verified setups that get rid of drone.

BUT... any suggestions? How the hell should I get rid of the the drone???

[Despized]

I have one video up on youtube but nothing special. As for the X that is an X pipe I wanted to keep that in there to keep some equalization between the pipes. it is in 720p btw.

Just wanted to note I have 4-5 more videos that will be uploaded eventually I will have them under the same username. thanks.

[Mantis]

I will take one of my muffler delete/open downpipe today, on thursday the 4" single aluminum is going in.