Hallo,

currently i have a 2.3" exhaust system with a racing cat... maybe i want to change to a bigger one... i.e. 3" or 3.5"

now the question, is bigger = better or do i have some disadvantages when i go with a bigger diameter?

building is no problem...

can someone post some adavantages and disadvantages from a bigger or smaller diameter.

Turbo is a Garret T3 on a B16A Stock engine.

Thanks
Salte.

 

Bigger is better. It allows the turbo to breathe more freely which creates better spool ups.

 

honda-tech search system, is not using it = better?

 

you should be okay with a 3 inch DP to tip exhaust !

 

yellowturbo is right, you should be fine with at 3" downpipe back... Read this post, it's only 2 pages long and it discusses a pretty decent amount... https://honda-tech.com/zero...age=1

 

Just buy a thermal 3" and move on.......