who else besides thermal makes a 3" catback?

 

OBX makes one but why would you want 3" piping?

 

I am going turbo.

 

even if you are going turbo...isn't 3" a bit overkill??

 

3" is the best for flow. But you can run 2.5" with very good tuning.

 

your gonna loose your a/c condensor if you run a 3" down pipe aswell...

 

3" is the right size for turbo but depending on the size of the turbo you'll have some lag. i know that the 60 trim t3\t4 does

 

thats what I've always heard...and you'll lose some umph down low because of the lack of backpressure

 

i have afriend with a nine second juiced olds mobile... he has 3inch... if you REALLY consider your civic in that same class of air flow need.. then by all means.. go on wiht that.. my guess is.. its DEFINATELY over kill


not talking **** just trying to help you out

 

you dont need backpressure..you need more exhaust buildup.