Cat Delete ?

[A4Triple Blk]

Hey are alot of you guys going down pipe cat delete or test pipe (which replaces the cat all together) ? or are you going what ever comes witht the exhaust system your running ?

[davidlizard]

delete it!

[A4ringedONE8T]

Since you have posted a few threads on the TP/DP/Exhaust thing, I sense some confusion?

Yes a TP is a commonly used part to remove the cat. Where you are getting confused on the TP/DP thing in this thread and the other is on a few things. Think about another turbo car, for example a 1.8T VW. They have a downpipe, then a cat, and then a "catback" exhaust. So you can replace all three pieces seperately. On our cars the cat is right at the turbo, there is no downpipe beforehand. Now with exhausts for the dubs, when you get a catback exhaust you do not get a downpipe or a cat, just from the cat back. With the A4 when you get catback, you are essentially getting a downpipe and full exhaust. What complicates that even more is most exhausts come catback for the A4 and are just that, cat back, including everything from the cat (about 18" after the turbo) out the back of the car. There are a few exceptions. Some of the cheap exhausts that arent overly familar with the A4 (or care) call there systems catback. Now like the Vdub, a catback system starts underneath the car and is only about 70% of the exhaust system. Sooo they coin there exhaust as catback even though on the A4 its not truly catback. Also the TIP cars use a special TP and downpipe so they will normally have a seperate downpipe to be purchased.

An easy way to figure out whats needed, if the exhaust you are looking at costs 500-600 bucks, it IS NOT a true cat back system, you would need a TP as well as a DP to replace everything. If its in the 899-1200 range, it is actually catback on our cars and replaces everything after the cat, meaning you need only that exhaust and a TP to get turbo back exhaust

Hope that helps!

Shawn

[B8Buckeye]

Since you have posted a few threads on the TP/DP/Exhaust thing, I sense some confusion?

Yes a TP is a commonly used part to remove the cat. Where you are getting confused on the TP/DP thing in this thread and the other is on a few things. Think about another turbo car, for example a 1.8T VW. They have a downpipe, then a cat, and then a "catback" exhaust. So you can replace all three pieces seperately. On our cars the cat is right at the turbo, there is no downpipe beforehand. Now with exhausts for the dubs, when you get a catback exhaust you do not get a downpipe or a cat, just from the cat back. With the A4 when you get catback, you are essentially getting a downpipe and full exhaust. What complicates that even more is most exhausts come catback for the A4 and are just that, cat back, including everything from the cat (about 18" after the turbo) out the back of the car. There are a few exceptions. Some of the cheap exhausts that arent overly familar with the A4 (or care) call there systems catback. Now like the Vdub, a catback system starts underneath the car and is only about 70% of the exhaust system. Sooo they coin there exhaust as catback even though on the A4 its not truly catback. Also the TIP cars use a special TP and downpipe so they will normally have a seperate downpipe to be purchased.

An easy way to figure out whats needed, if the exhaust you are looking at costs 500-600 bucks, it IS NOT a true cat back system, you would need a TP as well as a DP to replace everything. If its in the 899-1200 range, it is actually catback on our cars and replaces everything after the cat, meaning you need only that exhaust and a TP to get turbo back exhaust

Hope that helps!

Shawn

shawn is raining down the knowledge!!! great clarification of some commonly confused exhaust issues...

.

[Undisputed]

That was a great explaination.

[A4Triple Blk]

ok so let me try and get this straight ... our cars have the cat right at the turbo so there is no downpipe. The cat back exhaust that are offered (the legit ones as you say A4ringedONE8T) are truly cat back exhausts correct ? And in order to have a full exhaust i would have to get a TP correct ? So essenetially on our cars DP and TP are the same thing ?

The only real reason i am asking so many questions is i want to fully understand what is going on with the exhaust. i want to know which i should get inorder to get the most power out of the exhaust system. Also i have heard a whole bunch of things about DP and TP that i want to clear up, which is that they put out about 15-25 hp.

I was recommended a few different types of systems. One i am leaning towards is http://http://www.ecodetuning.com/sh...ct_detail&p=86
this one. I heard it sounds and performs very well.

Just another question i know i'm over loading you guys with this but lets say with a full turbo back system, does it come with a cat or not ?

[widgget]

no, down pipe and test pipe are different

MANIFOLD > TURBO > CAT (OR TESTPIPE) > DOWNPIPE > REST OF THE EXHAUST.

The test pipe replaces your cat, it's just pipe with nothing inside (the cat has a filter) so it doesn't burn the unused fuel.

the down pipe then connects to your cat (or test pipe if you removed your cat and are running a test pipe instead). the down pipe is the pipe that goes from the engine bay to the underside of the car where it meats the rest fo the exhaust.

link to that exhaust didn't work.

and your not going to find a turbo back exhaust, i've never seen one for the A4 anyway.

[davidlizard]

since You Have Posted A Few Threads On The Tp/dp/exhaust Thing, I Sense Some Confusion?

Yes A Tp Is A Commonly Used Part To Remove The Cat. Where You Are Getting Confused On The Tp/dp Thing In This Thread And The Other Is On A Few Things. Think About Another Turbo Car, For Example A 1.8t Vw. They Have A Downpipe, Then A Cat, And Then A "catback" Exhaust. So You Can Replace All Three Pieces Seperately. On Our Cars The Cat Is Right At The Turbo, There Is No Downpipe Beforehand. Now With Exhausts For The Dubs, When You Get A Catback Exhaust You Do Not Get A Downpipe Or A Cat, Just From The Cat Back. With The A4 When You Get Catback, You Are Essentially Getting A Downpipe And Full Exhaust. What Complicates That Even More Is Most Exhausts Come Catback For The A4 And Are Just That, Cat Back, Including Everything From The Cat (about 18" After The Turbo) Out The Back Of The Car. There Are A Few Exceptions. Some Of The Cheap Exhausts That Arent Overly Familar With The A4 (or Care) Call There Systems Catback. Now Like The Vdub, A Catback System Starts Underneath The Car And Is Only About 70% Of The Exhaust System. Sooo They Coin There Exhaust As Catback Even Though On The A4 Its Not Truly Catback. Also The Tip Cars Use A Special Tp And Downpipe So They Will Normally Have A Seperate Downpipe To Be Purchased.

An Easy Way To Figure Out Whats Needed, If The Exhaust You Are Looking At Costs 500-600 Bucks, It Is Not A True Cat Back System, You Would Need A Tp As Well As A Dp To Replace Everything. If Its In The 899-1200 Range, It Is Actually Catback On Our Cars And Replaces Everything After The Cat, Meaning You Need Only That Exhaust And A Tp To Get Turbo Back Exhaust

Hope That Helps!

Shawn

This Answer Is A Million TIME Better Than Mine!!!

[A4Triple Blk]

http://www.ecodetuning.com/shop/cart...ct_detail&p=86

just copy and paste that in to the address bar ... so you think i should get a good after market full exhaust and then get down pipe to complete it ?

[widgget]

thats what i run, despite being called a "turbo back" it does NOT include a testpipe or cat. you will get the downpipe and exhaust, this is a cat back system so you will ALSO need to get a test pipe if you want to run one.

EDIT: You can ignor this, i just saw you have a 6 speed, gonna leave it in though for future reference if this is ever searched.
-Also keep in mind that the downpipe is only for a manual. if you have have an automatic and get the auto tranny version of the exhaust you will need to purchase the downpipe separate also.

Call EuroCode, talk with a rep there, ask them if you don't believe me, i think your going to find what i just said to be true. and if they do tell you it's turbo back, well make sure you record it because your going to be going back to them when it doesn't come with a test pipe.

To directly answer your question: "so you think i should get a good after market full exhaust and then get down pipe to complete it ?" Yes...........

[widgget]

do some searching, I found it for $719- with free shipping, don't know if there is a price difference between the auto and manual version though, i woudl assume there is.

Would share were i got it from but i just located it for the best price i could and gave all the info to my wife to order for me for xmas last year :P so i don't have it readily accessible.

[A4Triple Blk]

haha its all good widgget thanx for the help ... NOW i know where i'm going ... you see we're getting somewhere thanx guyss

[widgget]

you are going to LOVE that exhaust.

[A4ringedONE8T]

ok so let me try and get this straight ... our cars have the cat right at the turbo so there is no downpipe. The cat back exhaust that are offered (the legit ones as you say A4ringedONE8T) are truly cat back exhausts correct ? And in order to have a full exhaust i would have to get a TP correct ? So essenetially on our cars DP and TP are the same thing ?

The only real reason i am asking so many questions is i want to fully understand what is going on with the exhaust. i want to know which i should get inorder to get the most power out of the exhaust system. Also i have heard a whole bunch of things about DP and TP that i want to clear up, which is that they put out about 15-25 hp.

I was recommended a few different types of systems. One i am leaning towards is http://http://www.ecodetuning.com/sh...ct_detail&p=86
this one. I heard it sounds and performs very well.

Just another question i know i'm over loading you guys with this but lets say with a full turbo back system, does it come with a cat or not ?

Our cars have the cat at the turbo (which a TP replaces), then a downpipe, then the rest of the exhaust. If certain tuners didnt F up the labeling of certain A4 exhausts it wouldnt be so hard to understand. On a Vdub, when you get catback exhaust, it starts mid car and goes out the back, NOT including a downpipe, that is bought seperately. Now with the A4, if you buy a correctly labeled "catback" exhaust, one like I said that is $800-900+ whether is Neuspeed, APR, Miltek, Thermal, ... it will include everything cat back, meaning the downpipe as well. Companies like Magnaflow and I forget the other label there exhaust systems "catback" but they are using the reference point of every other car meaning the cat is normally found under the car, not up in the engine bay like ours. Sooo with those, you would need a testpipe, downpipe, then there "catback" exhaust system.

To get a full turbo back exhaust you would need to either 1) have one made, or 2) buy a testpipe as well as a true catback exhaust system (APR, Thermal, Neuspeed, Miltek, ... NOT the $500-600 cheapo's)

Im not sure how to take this, first I have seen something for the A4 labeled turbo back

Referring to this

http://http://www.ecodetuning.com/sh...ct_detail&p=86

If the picture is correct for the product, it does include a 3bolt flange as a testpipe/full downpipe connecting at the turbo would have. I would call or email David ([email protected]) regarding that particular exhaust.

Typically with a full turbo back system (on something other than an A4), it will include straight pipe in place of a cat, or a hi flow cat option. With the A4, as the cat is at the turbo, a catback exhaust obviously doesnt include a hi flow cat or testpipe. If that link to the Thermal exhaust is indeed turbo back, it would include piping from the turbo back, removing the cat. I'm sure the testpipe section is seperate though just as stock so if you wanted to use the stock cat or a stock replacement hi flow cat in its place it would bolt up and fit correctly

Hope that helps

[A4Triple Blk]

^^ thanx alot guys i really appreciate the help ... it has helped and now i know that the full cat back exhausts that are 500-600 are the real deal and include everything ... SIKE jk ... i'm gonna go with that thermal "turbo back" exhaust and a ecode test pipe ... how does that sound ? i'm pretty sure i know i have widggets vote lol