CYDALKIDD

i have a eg hatch and recently put in a gsr. right now i have DC headers and a greddy sp exhaust. is it okay if i leave the piping to have more back pressure or would it be better if i went to a shop and put 2.5" piping. its a stock gsr only IHE

erik_cd5

keep the stock pipe

vtechjunkie

iTrader: (2)

2.5 will give you more room to grow into. Just swap it out to 2.5 and remember to get mandrel bends.

sneeb

It's not going to make a difference. Keep the stock piping bro!

CYDALKIDD

alright, ill prolly keep the stock piping for now, i rather go with new struts first. but what is mandrel bends?

Libertariat

It's a type of bend that doesn't hinder flow as much as crinkle or regular exhaust bending. Other bending narrows the diameter of the pipe during the bend.

Red_Army

...wow not a one person ragged you for BP. amazing.

uhm. are you planning on building this?

if so i'd get a new(way better) header, you have a greddy sp muffler not exhaust but keep it and get your 2.5 mandrel bent exhaust. it'll be fun then.

if not then you can just keep the stock piping since the performance part is not important.

Libertariat

What's BP?

Red_Army

the back pressure. i was too lazy to type it.

sneeb

It's a very difficult word to type, we understand and knew what you meant.