Mufflerectomy

[eetsoot]

I just did the mufflerectomy. Seems to respond a little quicker but a little buzzy at about 3k rpms. I had them put two tips own to make it look stock. You people who have done this with a single tip, is your's buzzy at 3k?

I'll have to see if it bothers me on my drive to Reno. At least I still have the muffler if I decide to go back.

 

[SilverThunder]

Hi

Mine is doing this at 2400, initially it bothred me a bit. Now, i'm use to it.

ST

 

[MrMetal]

Don't point it down, just smack it straight out... that's what I did... here is a pic

Muffleractomy

 

[Cool_JettaTDi]

I did the same to my '97 Jetta (pointed it strait out) but I had to clean the bumper almost everyday because there was so much soot. As for the buzzing noise, I never heard it.

 

[Deception]

Originally posted by MrMetal:
Don't point it down, just smack it straight out... that's what I did... here is a pic

Muffleractomy

<font size="2" face="Verdana, Helvetica, sans-serif">Do you get a lot of soot on your bumper with the pipe sticking right out like that?

I got the mufflerectomy done a while ago but my pipe is hidden and has a downward pointing tip.

 

[UTAH]

I had the muffler shop do a 45 degree bend on the end - figured it would be a compromise to keep any "bounce" of sound off the asphalt down as well as keeping soot off the back end. Two tanks later, no soot.

There's no sound difference inside the car but I can hear a high whistle (turbo) outside the car. It's pretty soft and is not obnoxious. I doubt very much others would notice it.

The manager at the muffler shop was amazed after doing the mufflerectomy stating, "Geez, I can't tell the difference - why the heck do they bother to put a muffler on these cars!?"

 

[jjvincent]

With the pipe sticking out like that, I have a word of warning: Just watch your legs when you walk around the back of the car. Actually, if someone who doesn't know that pipe is sticking out like that, will probably smack it with their shins. I customer of ours put an extension on an old 5000 diesel to "keep the soot off of the back of the car". Guess what, someone in a shopping center came around the back of the car, tripped and fell over the pipe. That person sued the owner of the Audi and won.

 

[daveyracing69]

I would love to hear a reg mufflerectomy. I keep hearing people complaining about this buzzy sound. I have duals coming straight out with res in my tips. I have a baby rumble sound, throaty. Nothing like a V8, but something you would hear and say thats not stock...Maybe if I make it to this Waterfest GTG, I can meet people and their rides.

 

[Vik F]

Originally posted by danix:
What's common wisdom on the pipe diameter, 2" or 2.25"?

<font size="2" face="Verdana, Helvetica, sans-serif">if just replacing the muffler..then 2.5 is good...that's what I have for now....

 

[daveyracing69]

I have 2.25 all the way back. I kept it the same from the downpipe, just so everything was uniform, plus I went dual, I wanted to make sure i was not too open. Even tho the turbo acts like a giant muffler (back pressure)

 

[BENFICA251]

did you eliminate booth mufflers or just one?

 

[danix]

What's common wisdom on the pipe diameter, 2" or 2.25"?

 

[daveyracing69]

I did just the rear muffler. Our Res/cat is connected to our downpipe. I did not want to fool around with the pain in the ass down pipe.

 

[Old Navy]

I have had mufflerectomy done to the NB and my service dept folks could believe how little the noise level was effected when it was in shop for skidplate install. The only noticable difference was the whistle. My crome pipe is oval and is not a big funny looking pipe

sticking out the back of car. See photo's at link below.

http://mycitycable.com/~wreasons/TDI%20VW's.htm

After 3000 mile vacation still glad I made the change. The car has the sound of the Porsche Boxer engine from the other side of the VW family tree. I have more wind noise at at 75 MPH then exuast. You can wind it up to about 3000 in second then let of throttle and really make the kids with ricers sit up and droole. Has a much deeper tone and no poping.

I explained the $45 cost of this as getting rid of extra weight (30lb?) in back of car so the mudflaps would not drag everwhere and that when we put the cooler in the trunk we wouldn't drag the bumper on the way out of the driveway or over speed bumps.

 

[jjvincent]

wheeler498,
That's the same thing I thought when that happened to the guy in the 5000. But you know what, it takes all kinds people(just like the lady that sued McDonalds for serving coffee too hot).

 

[tdi498]

"With the pipe sticking out like that, I have a word of warning: Just watch your legs when you walk around the back of the car. Actually, if someone who doesn't know that pipe is sticking out like that, will probably smack it with their shins. I customer of ours put an extension on an old 5000 diesel to "keep the soot off of the back of the car". Guess what, someone in a shopping center came around the back of the car, tripped and fell over the pipe. That person sued the owner of the Audi and won. "

<font size="2" face="Verdana, Helvetica, sans-serif">How on earth can you hit you shins on that pipe. its only past the bottom edge of the bumper 2". If someone is that close to the car they need a wack in the shin.

 

[DRIVER FOUND]

Originally posted by UPsolute Chip Tuning by garrett P.:
[QB]just bring it to a muffler shop and have them go from about 1 foot behind the cat. you can use aluminized pipe since it will be cheaper then stainless and how often do people look under your car

. my pipe exits flush with the rear valance so from the rear you do ntoo even see and exhaust on my car, nice and clean and even

<font size="2" face="Verdana, Helvetica, sans-serif">I have read several posts about the mufflerectomy and a couple on the Techtonics Tuning Exhaust. Except for the price what is the difference between the 2 for sound and if applicable performance. I read a post between OLDMAN and someone else debating the veracity of a 7-10 HP gain with the TT exhaust. Any thoughts? Also my Jetta is a 2002, Chipped, with only 8,000 kms on it. My dealership has told me they do not mind the chip....what should I expect if I hack off the mufflerS?

[ July 22, 2002, 15:24: Message edited by: DRIVER FOUND ]

 

[Eric Roberts]

Has anyone here remove both the muffler and resonator on third gen jettas? I have already hacked off the muffler and havnt yet put my straight pipe on, im wondering if i can take the resonator off too. Thanks in advance

Eric

 

[Speedracer]

Hitting your shin on the exhaust tip???? That person deserved it for being too close. That's part of the security system, the "Get the F@#K Back!" feature. LMAO!!!!

 

[Speedracer]

Does that mean I could visit my local parking lot and burn my hand on someone's mufflerectomy because it was hot??????? ROTFLMAO!!!!!!

 

[Deception]

You don't need to cut the piping from way up at the cat; you can just cut the portion that's right after the bend over the rear axle. That way, you only have to weld on a perfectly piece of straight pipe (stainless is good) and put on a bend down at the end. The factory piping from the cat-back is already very efficient so it's pointless and more expensive to chop it all off right after the cat.

 

[silverback]

Hey guy's, Why even bother. No performance increase, right? Ok you lose 20 or 25 lbs.

 

[MrMetal]

You lose weight in the back (which is not exactly heavy to begin with) BUT... the turbo spools up a tad quicker and more importantly, the car sounds oh-so-much more fun

[ July 24, 2002, 09:18: Message edited by: MrMetal ]

 

[TDI_ESEL]

PLEASE, please, please tell me if the A4 Golf muffler is a slip-joint or if I need to cut it out.

 

[daveyracing69]

Its not a slip joint. You need a good old fashion saw all. Or burn it off like I did.

 

[doc_m]

I would have to agree with deception here all I did was get the shop to cut off the muffeler and weld a pipe and add the twin stainless out the back, and these are angled up, done many road trips with them, and have no problems with noise, can't really even tell it's done, the shop guy asked me why they even bother putting a muffler in the car cause he didn;t notice a difference with out it.

[ QUOTE ]
You don't need to cut the piping from way up at the cat; you can just cut the portion that's right after the bend over the rear axle. That way, you only have to weld on a perfectly piece of straight pipe (stainless is good) and put on a bend down at the end. The factory piping from the cat-back is already very efficient so it's pointless and more expensive to chop it all off right after the cat.

[/ QUOTE ]

 

[NEWDUB]

Great info....is there any specs re: power increases with this mod? Will this decreased backpressure affect the turbo in anyway?
Thanks for any help!

 

[ivyTDI]

I'm in a '99 NB, is this reccomended for us too? I'm thinking probably yes but there's no harm in asking. thanks!

 

[jpdeuce]

I'm about to get my dad's '02 NB and was wondering about this. This post doesn't say much about why to do the mufflerectomy or what it's good for. I'm guessing that getting air out with less restriction is good for any motor...so that would be the reason.

What's involved besides cutting the pipe before the muffler and putting a new end on? Does it have to be welded? I mean, what should you care if it is welded there or not...wouldn't a good gear clamp work just fine?

Anyway...just checking on this and seeing if there was anymore input from the masses.

Thanks
jp

 

[TheCheat]

When I do mine, I'll be using an OEM clamp. That way, if I ever have to put the stock muffler back on, it's a 1-2-3 job.