Exhaust Confusion

[Strife26]

Can someone break this down for me...I want to get a full exhaust for my BRZ.
Looking around and viewing the diagrams and/or anything I can find (yes through search) I am still confused and I am not sure if I am getting a better understanding or more confused. The diagram has a midpipe, frontpipe, overpipe and the muffler.
Half the time when I search a term above I get hits with multiple names. The list...
Midpipe, overpipe, uppipe, downpipe, crosspipe, crossover, testpipe, trackpipe, delete this or that, catless, catted, high flow cat, resonated, non-resonated.
I think that is most of them. I get last items. Cats and resonator etc, but all the different pipes that I assume are the same. What pieces do I need if I want to buy a complete exhaust system that is ALL 2.5"

Headers, Downpipe/uppipe/overpipe, midpipe, mufflers...Is that correct? I would like to go full catless and all 2.5" so the exhaust is all one size.

If you can help a guy out it would be much appreciated. If all you have to say is "search" please go to another post and do that. I did, it hasn't helped me enough, but it did help to confuse me.

Thank you in advance.

[Silent_Dan]

If you get a cat back exhaust all you need then is the front pipe and over pipe if I understand correctly. When you get the cat back you replace the mid pipe and muffler section.

[ryoma]

I was confused as well when I first got my car. I was used to downpipes and midpipes since that's what my old car had. however, for a full exhaust for this car you will need headers, front pipe, overpipe, and a catback. catbacks come with the midpipe and muffler, but don't get it confused with an axleback, which only comes with the muffler.

[cdrazic93]

the exhaust is as follows;

Header ->frontpipe->overpipe->midpipe->muffler.

Frontpipe + overpipe =downpipe

Catback = midpipe + muffler

Header back = header + frontpipe + overpipe + catback

[cdrazic93]

Frontpipe and overpipe might be switched, i cant remember.

[Strife26]

Thank you all so much! I thought this was the case, but all the terms you run into, omg! I thought the midpipe came with it, but again got lost after reading too much into it.
I may replace the mid pipe, because I want to have a catless option too (in case I wanna be real obnoxious, jk). In time, I think I will get the berk test pipe since it's not too expensive.


Thanks again!

[ryoma]

midpipe does not have the cat. the front pipe has the cat, and the header has the cat. the midpipe might have a resonator though, depending on which catback you get.

[edeekeos]

[Strife26]

Originally Posted by edeekeos

That's what I kept going back to, but when I would search each part I'd get 3 names for each piece so wanted to get some clarification from forum.