Yes I did searching and I'm still a bit fuzzy.

If I've read right it goes the cat(or test pipe replacement) comes off the turbo and the down pipe is after the test pipe.

Correct?

For those of you that made your FIRST mod a test pipe install.

Fitment issues to a stock exhaust.

What size 2.5 or 3" works best?

Is it better to replace the test pipe and down pipe at the same time?

What is the best way to fit up the larger pipes to the stock exhaust?

Bolt-on or weld?

I suppose I can avoid all those questions and just ask.

What is the easiest way to add a test pipe to a stock system as a first mod?

thanks for the help to the noob question!