i have a b16a swap in the eg civic.i am running a aftermarket ss dc header with aftermarket air intake.but with stock eg exhaust pipe and cat converter,but i have a oem s2000 rear end muffler welded on.but is eg stock pipe not high flow enough and holding the car back?thanks

 

stock exhaust is always enough flow bro. its only a four cylinder. just sit back and listen to your vtec blast

 

how many inches is it?

 

b16 exhaust is 2" i believe.

 

i would say get a higher flow if you want a little more power but it would be kinda loud.

 

u need a aftermarket full exhaust system to make that car run better and a good ecu tune.