The borla exhaust is great because it is quiet compared to other brands, until you are at wide open throttle. I know what you're talking about though. Mine was a little quiet for my taste at first but once I got used to it I realized that it's a very original sound that no other car has. If you want to sound like a honda, buy a honda.
I would suggest some headers or a high flow catalytic converter to open the exhaust up more. That would make it deeper sounding and louder.
This was before my new motor. I had a cold air intake, headers, a high flow catalytic converter, and the borla system.

After the new motor. Same mods as above with larger cams and lower compression pistons.



I'll see if I can get a better exhaust video tomorrow. It's running better since those were taken.
I would suggest some headers or a high flow catalytic converter to open the exhaust up more. That would make it deeper sounding and louder.
This was before my new motor. I had a cold air intake, headers, a high flow catalytic converter, and the borla system.

After the new motor. Same mods as above with larger cams and lower compression pistons.



I'll see if I can get a better exhaust video tomorrow. It's running better since those were taken.