exhaust work?

[hondaboy1]

ok recently installed a hks muffler axle back.... thinkin about upgrading, buyin a cold intake, and a throttle body.... now wanna bump it up too 3in catback pipe. Now i still gotta pass emissions, i dont think bigger pipe will affect that, but what do i do about resonators? wanna keep the deeper tone of the exhaust and will the bigger pipe affect my sound greatly to where if i get emissions done they might fail me for noise DB's?

thanx much

[JRBRUIN7@aol.com]

This is just my two cents but I would keep the exhaust the way you have it now, my friend had a loud exhaust on his car got a 5 day tag on it, didn't fix it right away, then about a month later got pulled over again for the same problem. I would just leave it the way it is but thats just me.

[navylife59]

Don't go to 3" unless your going turbo. It will kill your off idle response an wreck your lower RPM torque curve on N/A.

The general rule of thumb is:

2.25 N/A OEM - to mild build
2.5 N/A build, S/C
3" Turbo

There are always exceptions based on different variables.