Is there a difference in the mufflers on Integras. Like is the gsr can better then the ls. I'm talking about the can only cause i have a stock civic muffler on my civic. But since i have a gsr motor in my civic i want to put 2 1/4 piping from the header back and then the stock gsr can. or can i put a ls can? thanks

 

What is the reason for this? I guess you could do 2.25 piping and then have a muffler shop weld in a GSR muffler. You should try out a Comptech, they are pretty good exhausts. I don't think there is gonna be a big difference in mufflers, the main difference comes from the piping.

 

Have you thought about getting an itr exhaust setup for your car? Its about 30% more free flowing than a Gsr exhaust setup. Unless you have some crazy plans in the future with your motor, this setup will be suffice for your needs