i did some search and i see that testpipes give good HP for our 1.8t..i want to get one before i put my magnaflow on, so i dont have to raise my car up twice to work on it..what is the different between the ecode and evolution testpipe?? its like a $60 difference..

 

If you are going to do the exhaust you should save the trouble and do it all at the same time. The test pipe will be the biggest pita because the bolts are hard to get at and tend to be corroded. As long as the pipes are the same size and have the O2 bungs then get the cheaper 1.

 

They're pretty much the same thing except some are polished. Save your money and get the cheaper one. As a side note, I bought the ATP 3" TP from ecode tuning and my experience was pretty bad. Two weeks after I bought it, I sent them an email to ask where it was and they still hadn't shipped it. They sent me an email saying I would get a tracking # the next day. A week and a half later, I finally got the TP. The day after that, they sent me the tracking number. Sorry for the rant, but you might want to shop somewhere other than Ecode Tuning (there shipping is VERY expensive too).

 

Dont get the ecode/ATP test pipe. The test pipe-turbo flange on it is a poor design. Hard to explain, but the bolt nearest to the exhaust manifold is almost impossible to get on all the way. The angle of the pipe coming out of the flange keeps you from being able to get a socket/wrench on it straight which increases the chances of strippng the bolt and not being able to tighten it all the way. This has happend to me and some other people on AZ.

 

So which testpipe would you guys recommend than for a b6 1.8t fwd??

 

Any one that isnt ecode/ATP imo.

 

Got any names... what about an ebay testpipe? is that even better than ecode/atp?

 

Show me an ebay test pipe that is designed for any audi engine and Ill let you know.

 

What brand TP did you end up getting, I can't remember?

 

http://cgi.ebay.com/ebaymotors/New-B...QQcmdZViewItem

what do you think about this, and do you think that having a 3 inch test pipe, a 2.36 inch downpipe, and 2.75 inch piping back would cause the back pressure to be messed up?