what do you mean. (sorry i am new to the whole audi thing and only know about my car specifically ahha). someone above said that if u buy a turbo u need a ecu program too?

 

that is what the chip is..... they put a chip on your ecu and program it on a computer for different engine specs.

 

sorry i wasnt getting to wat i meant..i meant would i need a chip if i got the k04?

 

It would run better if you got ko4 software with the turbo but it's not necessary.

 

and it would definatley wake up that k04!!!!

 

I'm at work right now, otherwise I would post a link to the classifieds section in AZ where you can get a new K04 and install kit for about $800. You need a K04-15 for the upgrade. For software, you can go with GIAC or APR.

I'll get back to you with the backpressure myth and the links.

Check out www.turbobygarrett.comfor more info on turbo tech and how they make power.

 

http://forums.vwvortex.com/zerothread?id=2029936

 

Yah the ko4 is worth it, but im getting back pressure and the smoothness throught the rev range is pretty poor, especially under slow acceleration. Ive had 2 huge backfires since i installed the turbo 2-3 months ago. Maybe this is effecting the smoothness but i have exhaust and dont understand why the cat might cause such a problem.

 

A boost leak may also be the cause along with many other factors. Have you gotten your car scanned for codes?

 

do you have a high flow cat w/ that exhaust, or downpipe?