Hi I was wondering what size pipe would be best for my car is i am having a muffler shop build me one, I have a 2000 civic with a d16y7 engine the mods are Cold Air intake, 4-2-1 Header, and No Catt, and a muffler. I have heard of alot of people gettting 2 1/2 but i understand that to big of a pipe will make you loose all of your low end torque, so what diameter pipe would be best, i would also like it to sound decent so 2 1/4 or 2 1/2??

thanks for the help

 

u really dont lose that much low end torque because of ur modes make up for that i have the same set as u plse a few other on my d15 but honestly u better like a loud car cuz it gonna be crazie loud because that header and no cat open that motor up like a can of beans well good luck